The oscillator hummed at 60 hertz, a flat and persistent drone that the records annex had never quite managed to kill. Margot Vasek pressed the tip of her stylus pen against the oscilloscope's glass housing and watched the trace jump, a thin green line crawling left to right across the phosphor grid. Twelve forty-one p.m. on a Tuesday that was supposed to be closed. The annex had no lock on its back door. It had no lock on most things, not since the county defunded the front office in 2019 and moved the whole operation down here, three levels below the municipal parking lot, where the air tasted of mineral salt and warm dust.
She pulled the reel to tape, a quarter-inch mag from the Wren estate archive, catalogued under CW-7714-B, and threaded it through the playback head with the care of a woman handling a live wire. The take-up spool groaned. Then the tape began to turn, and through the monitoring speaker the noise floor of a 1971 recording bloomed into the room: a wash of white static threaded with the faint, rhythmic tick of a clock somewhere in a room that no longer existed.
The forty-second segment sat at timestamp 14:37 on the reel. She had logged it six nights ago, flagged it, set it aside, told herself she would return to it with clean ears and a full cup of coffee. The coffee had gone cold an hour before she started this. The ears were as clean as they would get in a basement that smelled like heating oil and the particular mustiness of three thousand hours of unplayed silence.
Margot set her hands on the isolation console, a rig of patch cables and a half-worn Pfluger filter stack that had outlived two generations of operators. She routed the signal path, engaged the bandpass at 200 hertz to 4 kilohertz, and pressed play. The forty seconds unspooled into the dark room. Tick-tick-tick of the distant clock. A low, undifferentiated hum that could have been the tape itself degrading, could have been the building's pipes, could have been nothing at all. And underneath, or perhaps inside of it, a pattern. A repetition. The same irregular swell in the noise, rising and falling in four uneven pulses, over and over, until the tape clicked to its end.
She rewound. Played it again. Noted the swell shape in her notebook with a pencil that had been sharpened to a point so fine it split on the paper. Counted the intervals between pulses. Six seconds. Four. Nine. Three. Six. Four. Nine. Three. A cycle that breathed in a rhythm no engineer would ever program, no white noise generator would ever produce.
"Right," she said, and the word came out flat, almost bored, the way she let it come out when the strain beneath it was working overtime. "Right. Spectral."
She pulled the FFT analysis cable from the shelf and slotted it into the channel two input. The software running on the station's aging workstation was a build from 2014, patched and repatched until the interface had a kind of topographical mess of buttons. The screen flickered with green static, then settled into a grid. Margot set the window to the forty-second segment, toggled the time compression to twenty-five percent, and watched the waveform stretch itself out like taffy pulled slow.
What had been a blur of overlapping noise resolved. The four-pulse cycle elongated into a shape that had, now, individual contours. Rises. Falls. A gentle undulation that was not the random scatter of interference but something with intention in its curvature, with architecture.
She leaned forward. The parking lot above groaned with a truck shifting gears, a low metallic shriek that made her jaw tighten, but the waveform on the screen did not care about the truck. The waveform was a sentence she was about to read.
She turned the volume knob on the monitoring speaker until the signal was just above the room's ambient hum. Played the stretched segment.
The melody came through the speaker in a voice that was not a voice. A shape of sound, a contour, but a contour with the unmistakable grammar of a tune. Four bars. A rising line of six notes that climbed and then fell on the seventh, a held note that ached with a particular, almost childish longing, and then a descent that settled into a two-note rest at the bottom of the scale. Then up again. Rising. Six notes. The same. Held. Fallen. Rested.
Margot's hand stopped on the volume knob. Her fingers were white at the knuckles.
The lullaby was Elise's. Not a song from a recording, not a melody broadcast or published or hummed in any public space in the forty-three years since the Wren estate was closed. Elise Vasek had sung this in a kitchen in Harrow's Bend, in a summer so specific it was almost a single hour, with Margot on her back on the rug between the refrigerator and the stove, the linoleum warm from the afternoon sun, Elise's fingers combing through hair that was longer now than it had been that evening. The lullaby had no title. No notation. No second voice to confirm its shape in memory. Elise had sung it four times, maybe five, in that one summer, and then the summer ended and Elise was a name in a file, a voice in a reel, a woman whose lullaby no one else in the world had ever heard because no one else had been in that kitchen, had not lain on that warm linoleum with the hum of the refrigerator filling the gaps between the notes.
And yet. Here it was. Buried in the noise floor of a 1971 tape, stretched to a quarter speed, the waveform resolving into six notes and a held seventh and a two-note rest that landed exactly, exactly where they landed in Margot's memory from a kitchen that had been demolished in 2003.
The truck outside finished shifting. The oscillation died. The room settled back into its 60-hertz drone.
Margot did not move for eleven seconds. She counted them by the click of the take-up spool winding down to its stop. Then she reached for the intercom on the wall, the kind that crackled and whispered when you held it still too long, and pressed the button marked DELE.
"Fontaine. It's Vasek. I know it's past hours."
The intercom hissed. A static pop. Then a voice, low and unhurried, with the rounded vowels of someone who had grown up two miles past the town line where the accent didn't flatten out for a living.
"Margot. You look like you swallowed a pencil."
"I need you in here."
A pause. The click of a chair leg on tile. The creak of a drawer, the small thump of something light landing on a surface. "I'll bring the good coffee. The kind that isn't from the machine in the break room." The intercom clicked off.
Margot let the receiver settle back in its cradle. She turned to the screen. The waveform still sat there, stretched and patient, the four-pulse cycle rendered in green phosphor that flickered faintly with each cycle of the refresh rate. She reached for her notebook and drew the contour from memory, the shape of the lullaby as it lived in her body rather than in the recording. Six notes rising. The held seventh. The fall. The rest. She drew it twice, the second time slower, more deliberate, and when she held the pencil to the paper and compared the two lines, they matched. The recording and the memory. The shape in the tape and the shape in the kitchen, forty-three years apart, in a house that no longer stood.
Marge appeared on the filing shelf behind the console, a grey smear of fur that resolved into a cat with one ear notched and an expression of profound, feline disapproval at the state of the room. The cat blinked once, slowly, and began to groom a paw with an air of absolute indifference to the waveform on the screen and the tremor in Margot's hand that she was not, in any way, managing to conceal.
The intercom crackled. Delle's voice, tinny and warm, with a slight breathiness that came through the poor speaker like it was filtered through a long hallway. "I'm at the parking lot. Marge told me to hurry."
"You didn't need a cat to tell you to hurry, Fontaine."
"Marge told me you looked scared on the intercom. Marge's been a better diagnostician than this whole building for about six years." The intercom clicked off. Footsteps on the gravel above. The slow, rhythmic thud of a car engine idling in the parking lot, then the thud dying, replaced by the creak of the back door opening and closing.
The door opened. Delle Fontaine stepped in carrying a ceramic mug that was not from the break room, the one with the chip on the handle that she'd been using since 2018, and she set it on the console next to Margot's cold cup with a soft clink. She smelled like coffee and the particular mineral tang of the parking lot after rain, which had been coming down an hour ago and had stopped with the sudden, complete silence of a summer storm that spends itself quickly.
"Sit," Delle said. It was not a request. She pulled the metal chair from under the console, sat, and looked at the screen without asking. Her eyes tracked the green waveform with a stillness that Margot had come to recognize as the look Delle got when the mask came off, when the quick, deflecting, fast-talking southern drawl dropped to something slow and low and almost inaudible. When the trailer two miles past Harrow's Bend was the only place that mattered and the sister in Charleston who didn't answer the phone on Sundays was the only silence that had a shape.
"That's not a white noise signature," Delle said. Her voice was quiet. Conversational. Like she was talking to someone she barely trusted, which was, Margot realized, how Delle sounded all the time.
"No."
"It's structured."
"It's structured."
Delle set the mug down. Picked it up again. Set it down. The small, unconscious repetition of a woman whose hands needed to be doing something while her mind worked. "Fourteen thirty-seven on reel CW-7714-B. That's a Cornelius Wren recording, mid-seven-one. He was in the studio on Larch Street, not here, not the annex. He was cutting and splicing and he was alone in that room for hours at a time. I read the log. Page after page of what he called 'sessions.'"
"Yes."
"And underneath the clock tick and the tape hiss, he's got a lullaby. A lullaby that nobody in this town knows. A lullaby that, if I'm reading your face right, you know the melody of but you can't say it out loud without your throat doing that thing where you swallow hard before you speak."
Margot did not swallow hard. She pressed her lips together, which accomplished the same effect without the voluntary engagement. "I can say it."
"You can say it."
"I'm saying it now."
Delle nodded slowly. She reached into the inside pocket of her jacket and pulled out a small cassette recorder, the kind with a single button on top and a tiny speaker grille that was mostly painted black. She set it on the console between them, angled toward Margot. "Say it."
Margot looked at the recorder. The green waveform still crawled across the screen, four pulses, four pulses, the same undulating shape that had lived in her body for four decades and four months and the summer it was made in. She opened her mouth. The first note came out soft, almost below the room's ambient level, a rising line that was not singing so much as remembering the shape of a sound. Six notes. The held seventh, longer than it should have been, aching in the middle of the chest in a way that was not entirely melodic but entirely, undeniably, Elise's. The fall. The two-note rest.
The recorder's little red light blinked on. Blinked off. The internal spool turned for two seconds, then stopped.
Delle held the recorder between her thumbs. She did not look at Margot. She looked at the screen, at the green waveform, and her jaw worked once, slowly, the way it did when she was chewing on something she had no intention of swallowing. "That's not a lullaby that was recorded, Margot. That's a lullaby that was heard and then put into the tape by someone who knew it. Or who heard it in the room. Or who" She stopped. The word hung in the mineral-salt air. "Or who was in that room. In seven-one. On Larch Street. In a house that didn't have a lullaby in it."
Marge, on the filing shelf, had stopped grooming. The cat watched the screen with both eyes wide and forward, ears rotated back in the particular flat angle that meant it was listening to something that was not in the frequency range it could consciously process but in the one just below it, in the low, thrumming fundamental of the building itself.
The oscillator hummed at 60 hertz. The take-up spool clicked to its stop. The green waveform held its shape on the phosphor screen, four pulses, four pulses, patient and structured and not at all like the white noise of a degrading tape. And on the console between them, the small cassette recorder sat with its red light dark, its spool empty, holding two seconds of a lullaby that no one else in the world had ever heard, in a basement that smelled like heating oil, in a town that had been insisting for eleven years that Margot Vasek should have sold the house on Larch Street and gone anywhere, anywhere but here, to the place where the mortar held what it held and the walls hummed in a frequency that had no business existing below the threshold of human hearing.
Margot reached for the intercom. Pressed the button. Held it there, warm and silent, and listened to the noise floor of the building breathe around her.
The intercom button stayed warm under her thumb for another four seconds before she released it. The click was small, ceramic against plastic, and in the silence that followed, Margot could hear the refrigerator two floors up cycling its compressor on. A mechanical breath. The building settling. The noise floor of the Harrow's Bend Municipal Records Annex doing what it had always done, which was to hum at a pitch just under the threshold of comfortable hearing and just over the threshold of ignoring.
She set the intercom down. Picked up the small cassette from the console. The plastic was warm from the machine's drive. Two seconds of lullaby. Elise's voice, slowed to a quarter tempo, stretched until the vowels pooled and the consonants broke into something that sounded less like language and more like the creak of old floorboards in a house that no longer had anyone to walk across them.
The glass of water sat between the waveform monitor and the cassette deck. Three inches of tap water, still, catching the green phosphor glow from the screen. Margot had set it there twenty minutes ago and forgotten it, and now it was a small, patient thing on the console, a glass eye looking at the empty studio.
She threaded the tape back onto the play head. Engaged the transport lever with the flat of her index finger. The spool began to turn.
The first two seconds were silence. Then the lullaby came up, slow, so slow that each note carried the weight of a sentence, the way a confession carries weight when you say it in a quiet kitchen and the only other person in the room is the cat and the cat is licking its paw and pretending it did not hear. Elise's voice. Not Elise's voice. The recording of Elise's voice, worn down through eleven years of tape degradation, stretched through a digital resampling filter until the pitch dropped two octaves and the timbre went from the particular warm grain of her bedroom recordings to something subsonic, something that lived in the chest cavity rather than the ear. The melody was the same. It was always the same. Three notes down, one note up, a rest, three notes down. The lullaby that Cornelius Wren had recorded in room seven-one on Larch Street in a house that did not have a lullaby in it.
The water in the glass began to move.
Not a ripple from an impact. Not the shudder of a passing car on the road above. A standing wave, building from the center of the glass outward, the surface finding a geometry it had not wanted to have. The green phosphor light caught the meniscus and threw it in sharp relief across the console, and Margot watched the water find its shape. An oval. A long, narrow oval, wider at the center than at the edges, with a slight depression at the midpoint where the surface tension thinned to a film. The shape of a mouth open. The shape of a mouth that was in the middle of a word it had not finished saying.
She watched it for eleven seconds. Counted them. The standing wave held, patient as the oscillator, patient as the green waveform on the screen, four pulses and four pulses, the pattern locked and the water refusing to go still.
Then the sound hit her in the sternum. Not the ears. The sternum. A low, resonant throb that she felt in the marrow of her breastbone and the base of her skull, the physical signature of a frequency that was not meant to be heard but was being heard, was being felt, was pressing against the inside of her ribcage like a thumb held to the soft place behind the ear.
The taste of copper opened at the back of her throat. The familiar, loathing, specific taste that meant her body was trying to eject something that should not have been ingested. She had not ingested anything. She had eaten a cold pear and two slices of rye at two-fifteen and the food was still in her, solid and unproblematic, and yet the copper taste was there, thick and warm and pressing against the roof of her mouth like a tongue that was not hers.
Her hands found the edge of the console. Knuckles white. The glass of water was still there, the standing wave still holding, the open-mouth shape still forming and reforming in the green light, the surface tension thinning and thickening, the water breathing.
Marge, on the filing shelf behind her, had stood. The cat's tail was a straight line, rigid, the fur along it raised to double its width. The green phosphor caught the planes of the cat's face and the eyes were enormous, dark, fixed on the glass, on the shape the water was making, on the mouth that was not a mouth.
Margot turned. The waste bin was six feet to her left, the tall green plastic one that Delle kept lined with a bag that held a faint, permanent smell of black coffee and the lemon cleaner the annex used on Tuesdays. Six feet. She counted the steps. One, two, three. The console edge released her knuckles with a sound like a small bone cracking.
She did not make it to the fourth step. The copper taste became the whole of her mouth, the whole of her chest, and her body did what it did, which was to eject.
The fluorescent tubes overhead had not been turned on yet, so the annex sat in the blue-amber of a November dawn pressing through the industrial windows, and the only sound was the wet, ragged breathing of a cat that had not moved from the filing shelf in six hours. Marge's flank rose and fell against the metal spine of a 1974 municipal census report, and her tail-tip twitched once, twice, a metronome keeping time with nothing.
On the floor, six feet from the console and three feet from the green waste bin, the stain spread. Dark amber, catching the early light in the way that made it look older than it was, like a bruise that had settled into the weave of the fabric. The smell was the particular one that lived in the rag Delle kept in the break-room cupboard, lemon cleaner and the black coffee that had soaked into the cotton over a year, mixed now with something raw and yellow that Margot could feel at the back of her throat even after the vomiting had stopped. Even after the copper had thinned to a flat, tasteless residue that was somehow worse than the metal.
The recording station was still on. The screen glowed that low, institutional phosphor green, and in the corner of the display, small and no larger than a period at the end of a sentence, a lock icon sat over the file Margot had been running. Not a warning. Not a prompt. A lock. The kind that appeared when an audio file had been flagged by the annex's archival system, the kind that meant the recording had been pulled from public access and sealed under a municipal order that predated both of them by thirty-one years.
She had not set that lock.
Delle's boots made the particular sound they always made on the annex corridor, that soft rubber slap against painted concrete, slightly off-rhythm because her left heel wore on the outer edge. Margot heard them before she saw the figure, heard the key in the deadbolt, the three slow turns that meant Delle was using the service entrance and not the front door on Elm. The deadbolt caught. The latch. The spring-loaded handle giving way with a small metallic tongue-sound that carried through the empty rooms like a struck coin.
Then the door pushed open and November walked in with it. Cold air, flat and wet, carrying the smell of turned earth from the annex lot where someone had been pulling up the dead grass in broad patches. The temperature in the room dropped two degrees and Margot's spine went rigid against the cabinet. Delle's coat was the brown one, the one with the fraying at the cuffs that she'd had for four years and refused to replace. Her hair was pinned up, not well, a pencil still wedged at an angle that would fall out within the hour. She carried the thermos in her left hand, the one with the chipped enamel at the base, and the canvas bag over her right shoulder, the one that held the folders and the spectral analysis printouts and the small, crumpled box of gum that she chewed when the annex was quiet and no one was watching.
She stopped in the doorway. Took in the floor stain, the green glow of the console, Marge's rigid perch on the shelf above the 1974 census. Her jaw worked once, a small lateral grind against the molar, and she set the thermos on the counter without looking at it, without breaking the gaze she was fixing on Margot's face. The pale one. The one where the color had gone out of the cheeks and the skin beneath the eyes had taken on a translucent, bruised quality that made her look older than forty-six.
"You're shaking," Delle said. Not a question. Flat. The vowels soft and rounded, the Appalachian drag still in them even after twenty years in this town, even when she was trying to keep the words clinical. They were not clinical. They landed on Margot's eardrums warm and slow, the way a hand landed on a fevered forehead.
Margot exhaled through her nose. The air that came out was thin, reedy, the sound of a pipe with a hair in the bottom. "I'm fine."
Delle's eyes moved to the lock icon on the screen. A half-second. That was all it took. She did not point at it. Did not ask what the lock meant or when it had appeared or why a file that had been sealed for eleven years was running on a console that had not been scheduled for the overnight shift. She simply turned to the counter, screwed the thermos cap off with the twisty-ratchet sound it made, and poured two mugs of coffee into the ceramic cups that sat on the shelf above the sink, the ones with the faded Harrow's Bend seal on the rim, the blue paint chipped to bare metal where the cups had been set down too hard over a decade of mornings. She set one in front of Margot, slid the other toward herself, and crouched so her eyes were level with the console screen.
The lock icon pulsed in the phosphor green. The file beneath it was 07-WREN-1143, a reel she'd been cataloguing for nine months, the one the town council had sealed after the Wren estate went into probate. No one was supposed to be pulling it. No one was supposed to be listening to it past the hour mark, and no one had been listening to it at all for six years since the last archival review. The seal had been a gavel-sound in a closed room, a form with two signatures and a date, and the date was eleven years ago.
"What did you find?" Delle asked. Her voice was slow now, the mask sliding off at the edges, the breathiness underneath coming through like a draft under a door. She held the mug in both hands, the steam pulling up between them in thin, wavering threads, and her eyes were on the screen, not on Margot. The pencil at her hair had fallen. She did not pick it up. It lay on the counter, small and wooden, its eraser end facing the lock icon.
Margot's fingers had stopped splaying. They were flat on the linoleum, still, the nails pressing small white crescents into her fingertips. She swallowed. The taste that came up was not copper anymore. It was nothing. Flat, mineral nothing, like the air after a storm when the clouds have broken and the sky is just the bare, washed-out white of a ceiling.
"Carrier-wave harmonic," she said. The words came out measured, flat, the Midwest draw pulling each syllable into a clean, even line. "Old transmitter antenna. The one they drove in '43, the one that's still in the ground under the north lot, the one the county said they would remove in '51 and never did. The harmonic bleeds into the low end of any recording made within a quarter mile. You get a standing wave in the noise floor, and if the gain is wrong, if you push it past the threshold, it looks like a shape. A mouth, maybe. Or a hand. Or the edge of a glass where the surface tension is doing something it should not be doing at room temperature." She paused. Counted to three behind her eyes, the way she did when she was assembling a sentence that would not crack. "Equipment artifact. Nothing more."
Delle crouched a little lower. The coffee in her mug rippled, a small, circular wave that caught the blue-amber light from the window. "The lock, Margot."
"Flagged by the system. Archival protocol. It happens when a file gets cross-referenced with a sealed estate record. The council sealed the Wren tapes eleven years ago, remember? After Cornelius disappeared. Everything gets a lock on it automatically. Has nothing to do with what's in the file." Her voice did the thing it did when she was close to the edge, that sharp acceleration, the words coming faster than the rest of the sentence, the syllables piling on each other like stones on a shelf that was not built to hold them. She let the speed fall off. Returned to measured. Let the vowels stretch back out. "I'm going to log it and re-file it. Standard procedure."
Delle held the silence for four seconds. Five. She drank a long pull of coffee, the steam fogging the space between them, and when she set the mug down, the ceramic rang a small, clear note against the counter, a sound that was almost sweet, the sound of a door that would not close all the way.
Marge's tail-tip had stopped twitching. The cat's eyes were open, the green phosphor catching in them, and she was looking at the file name on the screen. 07-WREN-1143. Delle followed the gaze, looked back at Margot, looked at the screen again. The lock icon pulsed. The file name sat beneath it in small, clinical characters, and the characters were the same ones they had always been, the ones that meant a sealed record, a closed case, a name the town had agreed to stop saying out loud.
Delle did not press. She never did. That was the thing about Delle, the thing that meant she poured you another coffee instead of saying the thing that needed saying, the thing that meant she stood and straightened and tucked the pencil from where it had fallen and let it bounce on the counter with a small, wooden tap and did not pick it up. She folded her hands over the mug, the ceramic warm through the canvas of her palms, and her expression settled into the one she wore when the annex was quiet and the morning was still deciding what kind of day it was going to be.
"You should go home," she said. The words were slow, unhurried, the mask back in place at the edges, the breathiness pushed under the surface where no one would hear it. "The annex opens in forty minutes. I'll do the logging."
Margot pushed off the linoleum. Her knees were water, the joints bending a half-degree too far, the cartilage in them protesting with a small, grinding whisper she felt through the soles of her shoes. The stain on her slacks was dark, mottled, and she pulled the hem down over it, smoothed it with the flat of her palm, the motion automatic, the way a hand smooths a collar after a panic that no one else has seen. She straightened her spine. The console hummed between them, the low, steady frequency of the amplifier still engaged, still running the file that was not supposed to be running, the file with the lock on it.
And in the noise floor of that file, beneath the carrier-wave harmonic that was or was not an equipment artifact, beneath the static and the hum and the sixty hertz that bled through every tape in the Wren collection like a pulse, like a heartbeat pressed against the inside of a wall, there was a voice. A woman's voice. Low, unhurried, the vowels stretched long and warm the way Elise Vasek's had been when she sang to the children before the war, before the estate, before the eleven years of silence that had followed the disappearance and the sealing and the town's collective decision to stop looking at the north lot where the antenna still stood, rusted and leaning, throwing a long shadow that moved with the sun and that no one had ever measured. A lullaby. Three notes, then four, then the shape of a melody that Margot had heard in the noise floor of a hundred tapes and never once isolated, never once run through the spectral analysis that would pull it clean from the static. But last night, with the gain wrong and the standing wave forming in the glass of water on the console, the three notes had resolved into something she could hold. Something she could name. Something that was not a harmonic. Not a bleed. Not a ghost in the machine.
It was a voice. Someone had sung that into the tape. Someone had pressed the record button while the noise floor was still warm from the previous take, while the sixty hertz hum was still in the room, and had sung the lullaby low, low enough that it lived in the background, in the floor of the recording, the way a secret lives in the bottom of a glass you can almost taste if you hold it to the light.
Margot pressed her thumb to the lock icon. It did not respond. The file was sealed. She pressed it again. Again. The icon pulsed, indifferent, the small green light catching the curve of her nail, the light reflecting off the glass of the screen in a thin, cold line that crossed her thumb and went up into the web of her fingers.
"Margot." Delle's voice from the counter. Not a question. A tether. The coffee was still warm, the steam still pulling up between them, and in the thermos the remaining coffee sloshed with a small, liquid sound, the sound of something shifting to a new shape, the sound of a thing that had been still for a long time and was starting, very slowly, to move.
"I'll log it," Delle said, and the sentence carried the weight of every conversation they had not had in eleven years, every Sunday phone call to Charleston that went to voicemail, every dead cat in a shoebox that no one else knew about. She turned back to the counter, screwed the thermos cap on, and the ratchet sound was the same as it had been for a thousand mornings, the same small, metallic click, the same
The click of the thermos cap settled into the room like a small bone settling into a socket. Delle set the thermos back on the counter, its ceramic body still radiating heat against the cold laminate, and did not turn around. The break room hummed its low sixty-hertz note, the same frequency that lived in the tapes, the same electrical ghost that had been present in every recording Margot had pulled from the Wren estate since she'd first walked into this building eleven years ago with a box of unmarked cassettes and a grief she refused to name.
Margot's thumb was still pressed to the lock icon. The green light bled across her skin, thin and cold. She could feel the heat of the screen against her cheek, the glass warm from the monitor's backlight, the plastic of the keyboard tacky with the faint residue of the coffee Delle had poured for her forty minutes ago. The lullaby was still in her ears, not playing anymore but persisting, the way a song persists after you've walked out of a room, the melody rearranging itself in the architecture of your skull until it sounds like something you've always known.
Elise had sung it. Not Cornelius. Not the voice that filled the upper registers of every tape in the annex, the voice that talked in measured, midwestern cadences about mineral composition and water table depth and the particular way light fell through the canopy of the Wren property in October. Elise had sung it low, almost subsonic, into the hiss of the machine while the previous take still bled its sixty-hertz ghost into the room. She had sung it the way you sing when you are not performing, when the song is not for an audience, when it is just a shape your mouth makes to keep the silence from becoming unbearable.
"Margot." Delle said it again, softer this time. Not a tether now. A hand on the back of her neck, the kind you give a horse when it's pulling toward something it shouldn't.
"I know it's sealed," Margot said. Her voice came out flat, unadorned, the register she used when she was cataloguing, when the tape was a tape and the number was a number and nothing was a what. "I know."
"You don't log sealed files. You flag 'em." Delle's voice had the southern drawl in it, the vowels stretched a half-step, the consonants softened at their edges. She was talking to the thermos, not to Margot. "You flag 'em and you write it up and you send it up the chain and some man in a suit three towns over looks at it and says, yeah, that one's probably fine, move on." She turned then. Held the thermos with both hands, the way you hold a thing you're not ready to put down. "You don't break the seal."
"I wasn't going to break the seal."
"You were pressing it for four minutes." Delle set the thermos down. Picked it up again. The small rattle of liquid inside was the only sound in the room besides the hum, besides the sixty-hertz note that lived in the walls, in the wiring, in the old fluorescent panels that flickered twice every eleven seconds and never quite stopped flickering. "You were pressing it for four minutes, Margot, and I was in the corner making my coffee and watching your thumb go."
Margot looked at the screen. The lock icon pulsed. The file name read: WREN_ESTATE_TAPE_0047_B_NOISE_FLOOR_RECONSTRUCTION_FINAL. The word final sat there in clean, sans-serif type, and it was a lie, because nothing in this annex was final, nothing had been final for eleven years, because Cornelius's last entry in his journal had been a half-sentence about the acoustics of the lower well room, and the tape had cut off mid-word, and the word had been resonance, or it had been resonating, and she had never been able to tell which, and the not-knowing had sat in her chest like a stone she was not allowed to set down.
"The lullaby," she said. Not a question.
Delle was quiet for three seconds. The fluorescent panel flickered. Two. One. Three. The hum held steady.
"Who sang it?" Margot asked, and the words came out slower than she intended, each one placed carefully, the way you set a glass on a table you're afraid of breaking.
"I don't know." Delle's answer was fast, deflective, the mask snapping back into place. "I don't know who sang it. I know it's in the floor. I know it's yours, Margot. I know you've been listening to it for six years and telling yourself it's just a hum, just a sixty-hertz artifact, just the machine breathing." She said this without looking at her, her gaze fixed on the thermos cap, turning it in her fingers, the ceramic cool against her palms. "I've been watching you tell yourself that for six years."
The word yours landed in the room and would not move. Margot's jaw tightened. The coffee in her mug had gone cold an hour ago, a skin of oils floating on the surface, and the smell of it was chemical, burnt, nothing like the live steam still rising from Delle's thermos. She did not drink it. She pressed both hands flat against the counter, the laminate cold through her sleeves, and the lullaby in her ears shifted, rearranged, became something that was not a lullaby anymore but a question she had been holding for eleven years in a shape that was not a question.
Cornelius's voice. Elise's melody. The two of them layered in the noise floor of tape forty-seven, a tape that had been in the annex since the first day, a tape that should have been simple, a tape that was a well-sounding test and a water table measurement and nothing more. And beneath it, beneath the sixty-hertz ghost, beneath the static and the machine breath and the particular way the Wren recording equipment had aged in the lower well room, the two of them. Speaking. Singing. In a room she had not seen, in a year she had not been there, doing something so small and so private that it had survived eleven years of her not listening, eleven years of her pressing play and hearing only the upper registers, only Cornelius, only the measured midwestern cadence about minerals and light and the October canopy.
Marge moved on the roof outside. A soft, dry rustle, the sound of fur against weathered shingle, the cat stretching and shifting her weight from one hip to the other. The sound came through the break room window, which was open three inches, which Delle had propped open that morning with a folded invoice because the fluorescent panels made the air in the room feel like the inside of a sealed jar. Marge's meow was thin, high, almost inaudible, a sound that belonged to the world outside the annex, to the parking lot and the town road and the two miles of nothing between Harrow's Bend and the next place that had a name.