The Custard Conspiracy: The Witness Who Whipped

The telephone on Iris Thistleberry's desk rang twice before she lifted the receiver, a spoon still balanced between her fingers where she had been tasting the morning's test batch. The custard sat in a ceramic bowl beside the phone, its surface trembling slightly from the vibrations of the bell. She swallowed, set the spoon down on its saucer with a faint click, and spoke.

"Briarby Bloom, Iris Thistleberry speaking."

The voice at the other end came in unhurried waves, each syllable arriving soft and deliberate, the cadence of someone accustomed to measuring out words the way she measured out vanilla pods. Fern Briarby never rushed. Even when there was news to deliver, and Iris had the sense there was news to deliver, Fern let the silence between her sentences do half the talking.

"Iris, love. I need you at the station."

Iris reached for the custard spoon again, more out of habit than intention. Her thumb found the handle's familiar chip on the left side, the one she had been meaning to mend for six months. "What sort of station?"

"Police station. The one on Harrier Lane, with the ivy growing over the front step." A pause. "I have been sitting in the plastic chair by the water cooler for forty minutes, Iris. My back is not what it was. The chair has a lean to it, like it is trying to tip me into the corridor."

She pictured it. Fern, in her mud-stained gardening trousers and the wax jacket she wore regardless of weather, perched on one of those rigid visitor chairs while a constable shuffled past clutching paperwork. Fern, who had once told her that municipal furniture should be classified as a weapon. Fern, summoning her to the station rather than dropping by the Emporium for their usual Wednesday tasting.

This was not a social call.

"I am leaving now," Iris said. "Are you all right?"

"I am intact, if that is what you mean. It is Mr. Cosgrove I am calling about." Another pause, longer this time, and Iris heard the faint rustle of fabric as Fern shifted in her unhappy chair. "Iris, when you arrive, please use the side entrance. The press has started to circle."

She replaced the receiver without saying goodbye. The custard in the bowl had begun to settle, a thin skin forming across its surface, and she watched it for a moment before whisking it once, hard, and setting it aside. The test batch would have to wait.

The walk from the Emporium to Harrier Lane took seven minutes at her usual pace, but Iris covered it in five, her heels striking the pavement in quick rhythm. She passed the post office without slowing, nodded to old Mr. Pemberton who was sweeping the threshold of his chemist's shop, and turned left where the high street narrowed and the stone cottages gave way to the squat, practical building that housed the village's only police presence. A reporter she did not recognize was already loitering at the railings, notebook tucked under one arm, and she gave him a look that could have curdled fresh cream before cutting through the staff car park to the side entrance Fern had mentioned.

Inside, the station smelled of floor polish and stale tea and something fainter beneath, something that made Iris think of her grandmother's linen cupboard. The corridor was narrow, the linoleum worn pale by years of boots. A constable at the front desk glanced up, recognised her, and pointed down the hall without being asked.

Fern was where she had said she would be, in the second plastic chair along the left-hand wall, beside a water cooler that burped quietly every thirty seconds. She had removed her wax jacket and folded it over her lap, and the cotton shirt beneath was creased from a morning already too long. When Iris approached, Fern looked up with an expression that combined relief and something more guarded.

"Sit down, love. You look as though you have been running."

"I have been walking quickly," Iris said, and took the chair beside her. The plastic was as treacherous as advertised. "What is this about Cosgrove? I thought it was instantaneous. A collapse. His heart, or his head."

Fern folded her hands in her lap. Her fingernails were dark with soil, as always, and there was a fresh scratch across the back of her left hand from a rose cane she had not yet bothered to bandage. "I was not present when he was found. Hollis was. He sent word to me this morning, and I came here directly because the desk sergeant asked me to give a statement about a delivery I made to Cosgrove's cottage on Tuesday."

"What did you deliver?"

"Edible flowers. Borage and nasturtium, for a salad he had mentioned wanting to try. I left them on the step because he did not answer the bell. The door was ajar." Fern's voice remained even, but her thumb moved across the back of her other hand in a slow, repetitive stroke. "That is what I told them. Hollis told me the rest."

Iris waited. She had learned, over years of friendship, that Fern revealed things in layers, each one laid down only after the previous had been absorbed.

"They found him in the kitchen," Fern said. "He had been baking."

The word sat between them for a moment. Iris turned it over. Cosgrove was many things, in her limited experience of him: a retired bank manager, a fixture at the parish council meetings, a man who drank his tea strong enough to stand a spoon in. A baker was not on the list.

"Baking," she repeated.

"Vanilla extract on the counter. A bowl with a whisk standing in it. Flour dusted across the table, and a half-sifted mixture in a second bowl." Fern paused, and the water cooler beside them offered a small mechanical sigh. "He had been making something sweet, Iris. Something he did not finish. Hollis said the whisk was still in his hand when they found him, but the bowl beside him was empty. Whatever he had been preparing, he had poured it out before he died. Into what, Hollis does not know."

Iris leaned forward. The chair protested with a thin creak. "When you say not instantaneous, what do you mean precisely? Did he cry out? Did someone hear him fall?"

"Hollis found him at half past six on Tuesday evening. He had last been seen alive at two in the afternoon, by the postman, walking back from the chemist with a paper bag in his hand." Fern's gaze moved to the far wall, where a poster about bicycle safety had begun to curl at one corner. "There was a cooling period. The kitchen window was open, and the curtains were still moving when Hollis arrived. Whoever was there had left through the window, or had been gone long enough that the breeze had time to settle."

"Or," Iris said quietly, "he was alone, and whatever happened to him took four hours to finish the job."

Fern turned back to her. Her eyes, a soft grey-green that always reminded Iris of rain on nettles, held no particular emotion. That was how Fern looked when she was most alarmed.

"That is what I asked Hollis to consider," Fern said. "He told me it could not have been the heart. The state of the kitchen, and the position of the body, suggested a fall backward against the edge of the table. He struck his head. There was no mark on his hands, no sign of a struggle. But the heart, he said, would not leave a man standing over a bowl of whisked egg whites for four hours."

"Unless he sat down afterwards and rested."

"He did not sit down. He was found on the floor, Iris. Face up, with the whisk still in his grip, and the empty bowl on the counter above him." Fern's thumb had stopped its stroking. "He died reaching upward."

A door opened at the end of the corridor, and a constable stepped out carrying a cardboard box. He nodded to them as he passed, his shoes squeaking on the linoleum, and disappeared around the corner. The water cooler burped again, as if commenting on the interruption.

Iris sat back. The chair tilted dangerously, and she steadied herself with a hand on the armrest, which was sticky with something she chose not to identify. Her mind was already working, turning the image over: Cosgrove, alone in his kitchen, mid-bake, the whisk in his fist, falling backward without a sound. The empty bowl. The open window.

"Why did he summon you here, Fern? Why not call me directly?"

Fern's mouth twitched. It was the closest she came to a smile when the subject was grim. "Because Hollis knows that if he calls you directly, you arrive in three minutes and start asking questions before he has finished his first sentence. He wanted me to soften the ground." She paused. "Also, I suspect he wanted me present because he is not certain how much of this he should tell you."

"Hollis has kept things from me before."

"Hollis has kept things from everyone before. It is his way." Fern's gaze sharpened. "But he is asking for you now, Iris. Specifically. He asked the desk sergeant to bring you through as soon as you arrived, and the desk sergeant said he had been asking since yesterday."

That surprised her. Hollis Thistleberry, her older brother, the steady middle child of the founding Thistleberry brood, did not summon. He waited to be consulted, then delivered information in measured parcels, parcel after parcel, until the recipient understood precisely what he wished them to understand. If he was asking for her, it meant he had something he could not resolve alone.

"Take me to him," Iris said, and stood.

Fern rose more slowly, gathering her jacket and folding it over one arm. She was an inch shorter than Iris, and broader across the shoulders, the build of someone who had spent thirty years lifting sacks of compost. As they walked down the corridor together, Fern matched her stride without effort.

"One more thing," Fern said, just before they reached the interview room door. "The vanilla extract. Hollis said it was not a bottle from a shop. It was decanted into a small glass jar with a hand-written label. He read the label before he sealed the jar in an evidence bag."

Iris stopped. Her hand was on the door handle, but she did not turn it.

"What did the label say?"

Fern met her eyes. There was no particular warmth in her expression now, only a careful neutrality.

"'T. Hall, 1972.'"

The door handle was cold under Iris's fingers. She turned it, and the interview room's yellow light spilled out into the corridor, and she stepped inside without speaking, because there was nothing she could say that would not sound like her brother, or like her father, or like a long line of Thistleberrys who had spent their lives trying to keep the past where it belonged.

The room was small. A table, three chairs, a recording device on a side shelf with its red light already glowing. Hollis sat at the far side of the table, his hands folded in front of him, a folder open to his left. He looked tired in a way he had not looked on Sunday, when she had last seen him at the Emporium. There were shadows under his eyes, and his collar was slightly askew, as though he had dressed in haste.

"Sit down, Iris," he said. "There are things I need you to understand before anyone else does."

The chair across from Hollis scraped against the linoleum as Iris pulled it out. She sat down with her back straight, her hands flat on the table, and waited.

Hollis watched her settle. He did not speak immediately. He seemed to be weighing something, or perhaps selecting which of several prepared sentences to deliver first. The recorder hummed softly between them, a small red eye that saw everything and understood nothing.

"The vial," Hollis began. "The one found under Cosgrove's body. It contains vanilla extract of a particular vintage. Not commercial. Not from any shop in the county, as far as Hollis has been able to determine in the last forty-eight hours."

Iris did not blink. She had already learned the shape of this from Fern, in the corridor. She let Hollis say it anyway, because he needed to say it, and because hearing it twice made it more solid, more impossible to dismiss.

"The label," Hollis continued, "is in our father's handwriting."

The words fell into the room like stones dropped into still water. Iris heard them strike, heard them sink. She watched the ripples move across her brother's face, the careful composure he wore the way he wore his shirts, buttoned to the throat.

"You are certain," she said. It was not a question.

"I am certain of the handwriting. I am not certain of anything else. Not yet." Hollis looked down at the folder, then back at her. "There is more. The bottle was found beneath the victim, yes. But it was not the murder weapon. The wound was a single stab with a narrow blade, likely a kitchen knife, delivered from behind as Cosgrove knelt to pray. The killer placed the vial after the fact, or before. We do not know which. What we know is that whoever killed Cosgrove wanted that bottle found. Wanted it to be seen."

The yellow light in the room had a faintly greenish cast that Iris had not noticed until now. It made Hollis look unwell. It made the recorder's red light look bruised.

"Who else knows about the label?" she asked.

"I have told no one but you and Fern. The forensic report is sealed at my request. The lab technician is trustworthy, and discreet, but I cannot guarantee his discretion beyond this week."

"You want me to find out who made the bottle."

Hollis inclined his head. The gesture was careful, almost formal. "I want you to find out what our father was making in 1972, and whether any of it survived him. I want to know if there is a reason someone in a yellow slicker would have wanted Cosgrove dead, and whether that reason has anything to do with us."

Iris let the silence hold for a moment. Outside the room, she could hear the muffled sounds of the station, a telephone ringing somewhere, footsteps, the distant murmur of voices. She thought of custard cooling on a counter at the Emporium. She thought of a recipe card in her father's handwriting, longhand, with a date in the corner.

"If I do this," she said, "I do it my way. Not Hollis's. Not yours."

"I would not presume otherwise."

"You would, actually. You have presumed otherwise your entire life. But I am too tired to argue about it tonight, so we will pretend you meant what you just said."

Something moved at the corner of Hollis's mouth. Not quite a smile. The memory of a smile, perhaps, stored in the muscles of his face.

"Agreed," he said.

Iris stood. The chair scraped again. She did not push it back under the table.

"Where is Cosgrove's body now?"

"The mortuary at Hartwell. Hollis requested a private post-mortem. He is there now, with a pathologist he trusts."

"And the vicar's widow?"

"Asleep under sedation at her sister's house. She has been told her husband was killed. She has not been told about the vial."

Iris nodded. She moved toward the door, then paused, one hand on the frame.

"Hollis."

"Yes."

"If you are protecting me from something, I want you to know that I will find out what it is. And when I do, I will be very cross with you."

"I would expect nothing less."

She left him there with the recorder and the folder and the yellow light. She walked back down the corridor without hurrying, past the noticeboard, past the empty mugs on the desk, past the constable who nodded at her without recognition. Fern was waiting at the end of the corridor, leaning against the wall with her arms folded.

"Well?" Fern said.

"I need to speak with Bertie Quigley."

Fern straightened. "The solicitor? What on earth for?"

"Because he handles property transfers. Because he was at the pub that night. Because he is a terrible liar and an even worse coward, and if anyone in this village saw something they should not have seen, Bertie Quigley saw it and has been lying awake at three in the morning ever since, trying to decide what to do about it."

Fern considered this. "That is a fairly specific accusation."

"It is not an accusation. It is a profile. I will be polite. I will offer him tea."

"You do not have any tea."

"I will buy him tea. I will buy him the most expensive tea in the county if that is what it takes."

Fern pushed off the wall. "I will drive."

It was fully dark by the time they reached the village. The Emporium was closed, its windows dark, the sign swinging gently in a wind that smelled of rain that had not yet arrived. Fern parked outside the Quigley residence, a narrow Georgian house near the church, and switched off the engine.

Bertie Quigley opened the door before they had a chance to knock. He was a small man, soft around the middle, with a face that seemed designed to convey perpetual apology. His reading glasses were pushed up onto his forehead. He was wearing carpet slippers and a cardigan that had seen better decades.

"Mrs. Thistleberry," he said, blinking. "Miss Briarby. To what do I owe the pleasure?"

Iris smiled at him. It was her warmest smile, the one she reserved for difficult customers at the Emporium.

"Bertie. I am so sorry to call on you unannounced. I wondered if I might have a word about Mr. Cosgrove. The vicar. You knew him, I think."

Quigley's face performed a complicated sequence of adjustments. First, the polite mask of concern. Then, beneath it, a flicker of something sharper. Then the mask again, hastily reassembled.

"A dreadful business," he said. "Dreadful. I cannot imagine what the world is coming to."

"May we come in? It is rather cold out here."

He hesitated. The hesitation was almost too perfect, the pause of a man who wished to appear reluctant but was actually calculating whether his sitting room would survive inspection. Then he stepped back, and they were inside.

The house smelled of pipe tobacco and lavender polish. Quigley led them to a parlour at the front, where a fire had burned down to a low orange glow. He did not offer to light the lamps. He sat in a wing chair by the hearth and gestured, somewhat limply, at the sofa.

Iris sat. Fern remained standing, by the door, where she could see both Quigley and the hallway beyond.

"I will be direct, Bertie," Iris said. "I am trying to help the police understand what happened that night. They are not very good at understanding villages, as you know. They look for the obvious thing, and they miss the thing that matters. I thought perhaps you might have seen something. Something that did not seem important at the time."

Quigley folded his hands in his lap. His thumbs moved against one another, a small, unconscious rotation.

"I was at the pub," he said. "I left at half past nine. I walked home. I did not see anything untoward."

"You left at half past nine," Iris repeated. "That is early for you, Bertie. I have seen you at the bar past midnight."

The thumbs slowed.

"I had an early morning. Property matters. A conveyance in Upper Biddleton that required my attention."

"Of course. The conveyance." Iris let the silence stretch. She watched his face. She had known Bertie Quigley since she was a girl. She knew that his left eyelid twitched when he was being economical with the truth, and that the twitch arrived a full second before the lie itself.

The twitch arrived.

"I did not see anything," Quigley said.

Iris nodded slowly. She unclasped her handbag and drew out a small paper bag, which she set on the side table with a soft click of metal.

"I brought you something. A small token. Vanilla custards, the way my father used to make them. I thought perhaps you might remember them. You were at the firm that handled the Emporium's original incorporation, were you not? You must have met my father many times."

Quigley stared at the bag. His mouth opened, then closed.

"That is very kind," he managed.

"Bertie," Iris said, and her voice was very gentle, very warm, very patient, "I am not the police. I am not going to write anything down. I am not going to tell anyone what you tell me, unless you want me to. But I need to know what you saw that night. Because someone in this village killed Cosgrove, and I have a feeling, which may be wrong, that the person who killed him is the same person who has been making your life uncomfortable for quite some time."

The fire popped softly. Somewhere in the house, a clock ticked. Fern, by the door, did not move.

Quigley's face worked through several expressions. He removed his glasses from his forehead and cleaned them on his cardigan, a ritual of delay. Then he put them back on, and he looked at Iris, and something in him seemed to give way, like a gate whose post had finally rotted through.

"I saw someone," he said. "Leaving the back door of the vicarage. A figure. In a yellow rain slicker. It was raining, you see, quite hard. I had stepped out for a moment to get some air, and I saw this person come down the garden path and turn toward the churchyard."

Iris felt her pulse steady itself. She kept her face neutral.

"Did you see their face?"

"No. The hood was up. But I saw the slicker clearly. Yellow. Quite bright. The sort of thing one notices."

"Man or woman?"

"I could not say. The figure was, I suppose, of average height. Neither particularly large nor particularly small. The stride was brisk. Purposeful."

"And you did not mention this to the police?"

Quigley flushed. The colour rose from his collar to his ears, a slow, uneven bloom.

"I did not wish to become involved," he said. "I have a position in the village. I have clients. If it were to be known that I had witnessed something, and had not reported it promptly, my reputation might suffer. People talk, Mrs. Thistleberry. You know how they talk."

"Yes," Iris said. "I know how they talk."

She stood. She left the bag of custards on the side table. Quigley watched her go with the expression of a man who had just set down something very heavy and was not entirely sure where to put it next.

At the door, Iris paused.

"Bertie. One more thing. The slicker. Did you notice anything about it? A brand, perhaps. A tear. Any distinguishing mark at all."

Quigley hesitated. Then, very quietly, he said: "There was a tear. In the left shoulder. I remember because the yellow lining showed through. Quite bright. Like a little flame."

Outside, the wind had picked up. The first drops of rain were beginning to fall, heavy and warm, the sort of rain that smells of distant fields.

Fern unlocked the car. They sat for a moment in silence, listening to the drops strike the roof.

"A yellow slicker with a tear in the left shoulder," Fern said. "That describes half the village in a wet week."

"Yes," Iris said. "But it describes one person perfectly."

The post office occupied a corner of Brambleby's only chemist, wedged between shelves of cough syrup and a rotating stand of novelty mugs. A bell above the door chimed as Iris pushed inside, carrying with her the warm-petrichor scent of the first drops now thickening into a steady rain.

"Back so soon?" Mrs. Gosling glanced up from behind the counter. She was a small woman with sharp eyes and ink-stained fingers, the sort of person who knew exactly which envelope belonged to which villager before they had finished asking.

"I need to see the Held Mail register," Iris said. "For Cosgrove Cottage. Anything addressed there in the week before Mr. Cosgrove passed."

Mrs. Gosling's eyebrows lifted a fraction. She did not ask why. In Brambleby, the Thistleberrys asking questions was as natural as rain in November, and about as easily refused.

"The register is in the back room," she said. "You'll need to sign the slip."

The back room smelled of paper and dust and the faint chemical sweetness of mint throat lozenges. Iris signed the slip with a flourish she did not feel, and Mrs. Gosling set the large leather-bound book before her on a scarred oak table.

Pages rustled under Iris's fingers. Dates. Names. A village's ordinary correspondence laid bare: seed catalogues, council tax reminders, a sympathy card from someone who had died three years before the recipient. She scanned the entries for Cosgrove Cottage, her pulse quickening at each line.

"Here." Her voice came out quieter than she intended. She turned the book toward Mrs. Gosling and tapped the entry.

Seventeen September. A registered letter. Marked URGENT in red capitals on the printed form. Posted from London, return address only a box number. Signature line for delivery blank. Signature line for return blank. Still held at the post office counter.

"It was never called for," Mrs. Gosling said. There was something careful in the way she said it, the way one handles an egg one suspects is addled. "Mr. Cosgrove came in on the sixteenth for his pension, but on the seventeenth he did not appear. Nor on the eighteenth. By the nineteenth, of course, we had all heard."

"And you did not think to send word?"

"The form requires a request from the addressee or their next of kin." Mrs. Gosling's fingers tightened on her pen. "Mr. Cosgrove had no next of kin that we knew of. There was no one to write to. I kept the envelope in the safe, as protocol demands."

"Can I see it?"

"You can." Mrs. Gosling rose, unlocked a small grey safe behind the counter, and returned with a white envelope heavy in Iris's palm. "But you cannot take it. Not without authority."

Iris studied the envelope. Registered post, the red-and-white striped label crisp at the corner. The address written in a hand that was neither hurried nor hesitant: precise, even, the loops of the letters uniform. The return address was indeed only a London box number.

A letter sent urgently from London, the day before Cosgrove died, and never claimed. A man who lived alone. A man whose house had been entered. A man who had, according to Bertie Quigley, received a visitor in a yellow slicker with a tear in the left shoulder.

"The letter was posted in London on the fifteenth," Mrs. Gosling said. "It would have travelled by the morning post. Seventeenth of September. Mr. Cosgrove was already..." She did not finish. She did not need to.

Iris looked at the postmark. Fifteen September. Three days before the death.

"What time was it posted?"

"Evening collection from the Mount Pleasant office. It would have left on the overnight postal." Mrs. Gosling paused. "Mrs. Thistleberry, may I ask what this is about?"

"I am not sure yet," Iris said. "But I suspect Mr. Cosgrove's death is not going to stay unsolved for very much longer."

Back in the car, the rain had settled into a steady rhythm on the roof. Fern had not started the engine. She sat with her hands folded in her lap, watching the chemist door as Iris emerged with the envelope.

"Well?" she said.

Iris slid into the passenger seat and laid the envelope on her lap like an artefact. "Our Mr. Cosgrove received an urgent registered letter from London the day before he died. He never collected it. He never knew it had arrived."

"Who sends an urgent registered letter from a London box number?" Fern asked.

"Someone who wants to be certain of delivery," Iris said. "Someone who needs a signature. Someone who cannot afford to have the letter lost."

"Or someone who wants a paper trail."

"That too."

Fern turned the key. The engine caught, coughed, settled into a low hum. "We cannot open it."

"No. But I know someone who can."

She meant Caspian. The name settled between them like a stone dropped into still water.

Caspian Vanille occupied the rooms above the tearoom in the old mill building, a peculiar arrangement of beams and shadows that smelled permanently of brewing tea and old books. He had not always been of Brambleby. There were whispers, of course: that he had once been something in the City, something with letters after his name and a reputation that preceded him. There were also whispers that he had left all of that behind for reasons no one quite agreed upon.

What was certain was that Caspian Vanille was, in the unofficial estimation of Brambleby, the most discreet man in the county. Locks yielded to him. Seals bent and resealed. Envelopes that had been opened revealed their secrets without a mark of tampering. He did not advertise his skills. One simply knew, if one knew where to look.

Fern parked in the lane behind the mill. The rain was thinner here, filtered through a stand of old beeches that lined the path. The air smelled of wet bark and the last of the season's leaves.

Iris tucked the envelope inside her coat. She had no intention of leaving it there long.

"I will come with you," Fern said.

"I would rather you did not."

"I am coming anyway."

Iris looked at her. Fern's face was very still. Her hands were not.

The stairwell to Caspian's rooms was narrow and uneven, worn smooth by decades of feet. At the top, a door painted the deep green of a forest pool. No nameplate. No knocker. Just a brass bell-pull worn almost to invisibility.

Iris rang.

Footsteps. Slow. Measured. The particular cadence of a man who had learned to move without hurrying. The door opened.

Caspian Vanille stood in the doorway in shirtsleeves, a half-eaten apple in one hand. He was a tall man, beginning to stoop at the shoulders, with silver hair that fell across a high forehead and spectacles that sat slightly crooked on a long nose. His eyes were the colour of strong tea, and they held the same clarity.

"Mrs. Thistleberry," he said. His voice was low and unhurried, the vowels rounded in the manner of someone who had grown up somewhere with water and old stone. "And Mrs. Briarby. On a day such as this. Come in, before you catch your death of something useful."

The room behind him was exactly as one would imagine, and yet somehow not. There were books, yes: shelves and shelves of them, leather and cloth, some with cracked spines, some pristine. There was a desk beneath the window, its surface almost bare. There was a teapot on a low table, two cups already laid, as though he had been waiting.

"You knew we were coming," Iris said.

"I suspected. The post office bell chimed twice within the hour, which suggested a customer. The car in the lane suggests a Thistleberry. The fact that you are here, on a day when custard ought to be selling briskly, suggests trouble."

He gestured to the chairs. They sat. He poured tea without asking. The leaves were Lapsang, the smoke curling up sharp and strange.

"What have you brought me?"

Iris laid the envelope on the table. Caspian did not touch it. He studied the postmark, the label, the careful absence of any identifying mark.

"A registered letter," he said. "Posted from a London box. Addressed to a man now dead. Never claimed."

"Yes."

"And you wish me to open it."

"I wish to know what is inside."

Caspian's expression did not change. His fingers did not move toward the envelope.

"Mrs. Thistleberry. I have made certain arrangements in my life. I do not open other people's mail. I do not interfere with the course of correspondence. I have a reputation, such as it is, and that reputation depends on a certain... discretion."

"Caspian."

"I am not finished." His voice was still mild. His eyes were not. "The letter is addressed to Mr. Cosgrove. Mr. Cosgrove is dead. His estate is, I imagine, in some administrative limbo. The letter is held at the counter because no one has claimed it. Under such circumstances, the letter is, in the eyes of the post office, still his property. Technically, I would be opening a dead man's mail."

"You would be solving a murder."

"A murder has not been established. The inquest returned an open verdict, I believe. Undetermined cause. Uncertain."

"Then help me determine it."

The silence stretched. The tea steamed. Rain ticked at the window. Somewhere below, a clock in the mill tower began to chime, low and slow.

"There is a man I know," Caspian said at last. "In London. A solicitor. Old school. If I were to send him a letter, describing the circumstances, he might be moved to contact the sender of this communication. Through official channels."

"That would take days."

"Yes. It would."

"Days I may not have."

"Then perhaps you do not need me to open the letter." Caspian leaned forward, his elbows on his knees, his face very near the envelope without quite touching it. "Perhaps you need only to know who sent it. And perhaps that information can be obtained by other means."

"Such as?"

"Such as the postmark. Such as the box number. Such as the very particular hand that addressed the envelope." He straightened. "A London box number is only as anonymous as the holder wishes it to be. There are perhaps three firms in the City that use such boxes for sensitive correspondence. One of them is a firm of private inquiry agents. Another is a firm of confidential messengers. The third is a firm of solicitors."

He paused. His eyes met Iris's.

"The third is a firm I know rather well."

The rain had stopped by the time Iris and Fern left the mill. The clouds were breaking up over Brambleby, and the late afternoon light had turned the colour of honey. Somewhere in the village, a dog barked. Somewhere else, a child laughed.

Iris carried nothing in her hands now. The envelope remained with Caspian, who had promised to dispatch a letter by the evening post to his contact in London. In three days, perhaps four, they would have a name. Perhaps sooner, if Caspian's contact was feeling generous.

It was not fast enough. Iris knew it. Fern knew it. The custard in the bag on the back seat had gone lukewarm, and there was a line forming at the Emporium by now, Iris was certain of it, a line of loyal customers who expected their Thursday servings and were not going to get them.

But there were other things to consider.

"We have the witness," Iris said. "We have Quigley. We have the yellow slicker with the tear in the left shoulder. We have the London letter. We have, I think, enough to begin."

"Begin what?"

"To narrow it down." Iris fastened her coat against the chill that crept in as the clouds parted. "There cannot be so many people in Brambleby who wear a yellow slicker with a tear in the left shoulder. There cannot be so many who would have had access to Cosgrove's house. There cannot be so many who would have known what was inside it."

Fern started the engine. "And the letter?"

"The letter may tell us what he knew. Or what someone thought he knew. Or what someone wanted him to know." Iris looked out at the village rising beyond the lane, the chimneys of the cottages trailing their threads of smoke into the clearing sky. "Either way, Mr. Cosgrove died for it."

They drove in silence for a while. The lane wound down toward the centre of the village, past the church and the green and the war memorial with its weary angel.

"Iris," Fern said. "You are not going to rest until you know."

"No."

"And you are not going to let anyone tell you to stop."

"No."

Fern smiled. It was a small smile, the sort that lived mostly in the corners of her eyes. "Good. Then we had better get back to the Emporium before Hollis has a fit."

The Emporium rose at the end of the lane, its windows glowing with the warm light of late afternoon, its door propped open with a wooden crate of late-season strawberries. The line stretched almost to the corner.

Hollis was at the counter. He looked up as they came in, and his expression shifted through several stages of relief, exasperation, and weary affection in the space of a breath.

"Where," he said, "have you been?"

"Solving murders," Iris said.

"There are no murders."

"There may be. Tea, please. The strong one. And fetch Alastair. I think we are going to need him."

Hollis opened his mouth. Closed it again. Poured the tea. The kettle steamed, and the afternoon settled over the Emporium like a quilt drawn up against the cold.

Outside, the last of the rain faded from the cobbles. A yellow slicker, somewhere in the village, hung dripping on a hook. The person inside it did not yet know that a letter had been sent. Did not yet know that a witness had spoken. Did not yet know that Iris Thistleberry had been asked, and had begun, at last, to ask questions in return.