He crossed a ballroom of forty sweating guests to reach the plainest woman in it — and Cassandra Ashwell, twenty-four, three seasons unclaimed, made the error of taking his hand. He was a duke. He was also hiding something with teeth.

PART 1

The chair in the corner had been hers for the better part of an hour, and Cassandra Ashwell had every intention of keeping it.

From here she could see the whole of her sister’s wedding breakfast without being obliged to join a single moment of it. The long windows stood open to the July garden. White roses wilted in their silver bowls. Forty guests pretended not to sweat through their finest muslin, and the fiddlers sawed out a country air as though the heat were a rumor that had not reached them.

Lucy was radiant. That, at least, was not a courtesy Cassandra paid out of duty.

Her younger sister stood at the head of the room in ivory silk, her new husband’s hand at her waist, laughing at something Mr. Holt had murmured against her ear. Nineteen years old and married before noon on the prettiest morning of the summer, and the whole of Hampshire had apparently decided it was the most natural thing in the world.

Cassandra, four-and-twenty, unclaimed and comfortably ignored, could not for the life of her disagree.

“You are brooding,” said her aunt, arriving at her elbow in a rustle of lavender water and lilac taffeta. “I can hear it from across the room. It sounds precisely like a kettle that has decided against boiling.”

“I am not brooding, Aunt Maud. I am resting my feet.”

“You have not danced.”

“One cannot rest what one has not used.”

Aunt Maud lowered herself into the neighboring chair with the sigh of a woman settling in for a siege. She smelled of peppermint and dried roses, and her fan moved in short, decisive strokes.

“Your mother has noticed.”

“She has worn that look at me for three summers. I have grown fond of it. It is the only expression of hers I can predict.”

Across the floor their mother stood in a knot of matrons near the punch, her turban trembling with the effort of appearing delighted while she watched her elder daughter fail once again to be chosen by anybody at all.

Cassandra caught the glance. She held it a moment, then looked deliberately away toward the window, where a blackbird had landed on the sill and was regarding the wedding party with frank contempt.

She understood the bird entirely.

It was not that she could not dance. She danced perfectly well. When required. She simply preferred the view from the edge, where a person might watch the entire machinery of a ballroom turn without being caught in its gears. From here she could see which gentlemen counted their steps and which ones counted the exits. She could see Mrs. Falk pretending she had not let out the seams of her gown, and the curate helping himself to a fourth glass of ratafia, and the way her new brother-in-law looked at Lucy as though she were the only lit candle in a dark house.

That last one she did not mind watching. That one she rather liked.

“There is a man staring at you,” Aunt Maud announced.

“There is not.”

“There is. By the far door. He has been staring for some minutes and doing it very badly, which is to say he keeps pretending to admire the plasterwork.”

The fan paused.

“The plasterwork in this house is not worth admiring. I know. My late husband commissioned it.”

Cassandra did not turn her head. Three seasons of being looked past had taught her that turning toward a staring man was the surest way to discover he had been staring at the girl behind you. So she kept her eyes on the blackbird and used the long gilt mirror on the opposite wall instead — a trick that had served her better than any fan.

And there he was.

He stood near the door with the ease of a man who had never once in his life wondered whether he belonged in a room. Tall. Taller than any other gentleman present, and broad enough through the shoulders that his dark coat strained faintly when he shifted his weight. Not handsome in the soft, careful way the fashion demanded — his was a harder face, sun-touched, with a jaw that looked as though it had been set down rather than drawn.

He was, she thought, precisely the sort of man who arrived at a country wedding uninvited and made everyone glad of it afterward.

And he was without any doubt whatever looking at her.

“He is looking at the mirror,” she told her aunt. “There is a very fine draught of guests behind me.”

“He is looking at you, Cassandra Jane. And if you tell me otherwise, I shall be forced to conclude the heat has spoiled your eyes as well as your temper.”

The fiddlers reached the end of their air. In the small pool of quiet before the next one, Cassandra heard it — footsteps on the parquet, unhurried, coming closer.

She kept her gaze fixed on the window. The blackbird, sensing a shift in the room’s weather, spread its wings and dropped away into the roses.

Traitor, she thought.

“Forgive me.”

The voice arrived before she had quite decided to look up — low and warm and threaded through with something that was very nearly laughter.

“But you appear to be the only person in this room who is not entirely miserable. And I confess I should like to know your secret.”

She looked up then. Close to. He was worse than the mirror had promised, or better, which in her experience amounted to the same danger. His eyes were a gray so dark they were nearly the color of wet slate, and they were fixed on her with an attention she was wholly unused to receiving.

“You mistake me,” she said. “I am extremely miserable. I have simply had a great deal of practice at concealing it.”

Something moved at the corner of his mouth.

“Now that,” he said, “is the most honest thing anyone has said to me since I crossed the Hampshire border.”

“Then you have been keeping poor company.”

“I have been keeping ducal company. It amounts to the same thing.”

He said it lightly, easily, the way another man might remark upon the weather — and she noted it, and set it aside, a stray word of the kind gentlemen dropped to make themselves interesting. She had heard a great many such words. She had learned to weigh them like coin and find most of them false.

“May I sit?”

“You may not. The chair is my aunt’s, and my aunt is in it.”

“Then may I have this dance instead? They are forming a set, and I have the distinct impression that if I do not remove you from that corner within the next minute, you will take root there and be lost to society forever.”

Cassandra regarded him. Behind him she could see the room beginning to notice — small heads turning, whispers passing hand to hand along the wall like a lit taper down a row of candles. Her mother had gone quite still by the punch bowl. Lucy had turned from her husband to stare.

“Why?” she said.

He blinked. “I beg your pardon.”

“Why me? There are a dozen young ladies in this room who would faint from joy to be asked, and several who would faint from something less flattering. You have crossed an entire ballroom in this heat, past every one of them, to reach the plainest corner in the house. I should like to know why before I decide whether you are a fool or a schemer — because in my experience a man is generally one or the other.”

The whole warm room seemed to hold its breath. Aunt Maud had stopped fanning. Somewhere behind them a glass was set down too hard against a tray.

The stranger did not answer at once. He studied her — not the way men studied Lucy, cataloging what they might acquire, but the way a person studies a lock they have not yet found the key to.

“Because,” he said, and the laughter had gone out of his voice and left something quieter behind, “you are the only person here who has not once looked at the door to see who else might be arriving. Because you watched your sister marry with your whole heart in your face and never once thought to arrange your own expression for the room. And because a man who spends his life being looked at learns very quickly to value the one person in a hundred who would rather look than be seen.”

He held out his hand.

“That is the truth. And it has cost me more to say than you know. Now — will you dance, or will you make me stand here until the fiddlers give me up for lost?”

She should have said no. Every careful instinct she owned, every lesson three seasons of ballrooms had ground into her, told her to say no. To keep her chair. To keep her armor on. A man who spoke like that either meant nothing by it or meant a great deal, and she could not for her life tell which, and both were dangerous.

She put her hand in his.

His fingers closed over hers — warm, and rough at the base of the palm, where a gentleman of leisure had no business being rough.

And the moment they did, she understood she had made an error whose full size she could not yet measure.

They finished the set. She could not afterward have said how. Her feet knew the steps her mind had abandoned, and he was there at every turn, steady, warm, absurdly certain, murmuring dry nothings at the corner of her hearing — that the curate had now progressed to a fifth glass of ratafia and appeared to be proposing to a potted fern, that Mrs. Falk’s let-out seams had made their bid for freedom at last.

And Cassandra, who prided herself on saying little, found to her horror that she was answering him. That the sharp things she usually kept locked behind her teeth were slipping out into the space between them, and that he caught each one and turned it over and gave it back to her improved.

It was the most dangerous quarter of an hour of her life.

The music ended. The room applauded as rooms do, and under the cover of it he bowed over her hand.

“Tell me your name. I have asked three people, and each of them told me only that you were the elder Miss Ashwell — as though the word elder explained you entirely.”

“It generally does to them.”

“Cassandra,” she said — and had not meant to give it. It arrived in the world before she could weigh it. “Cassandra Ashwell. And I know better than to ask yours, sir, because my aunt has been trying to tell it to me for some minutes and has now gone the color of a boiled beet with the effort of not shouting it across the floor.”

He glanced toward the corner where Aunt Maud sat rigid and pink and radiating scandalous delight. His mouth curved.

“Your aunt is a woman of admirable restraint.”

“My aunt has never restrained anything in her life, which is why I am beginning to be afraid of the answer. Who are you?”

The music turned them once more, and for the length of a breath he did not reply. When he did, he said it plainly, without flourish — the way he had told her the truth about the corner and the door, as though a plain thing said plainly could not possibly cause the harm it was about to cause.

“Ravensmore,” he said. “Gabriel Thorne. The Duke of Ravensmore — though I would take it as a kindness if you forgot the first part for the length of one country dance. You have gone very pale, Miss Ashwell. Was it something I said, or merely everything?”

She had stopped moving. In the middle of the set, in the middle of forty watching guests, with the fiddlers still soaring gamely on, Cassandra Ashwell stood perfectly still and felt the floor of her small, safe, corner-shaped life tilt beneath her slippers.

A duke. Not a younger son with a courtesy title, whom she might have laughed off. Not a baronet’s heir puffed up on his own consequence. A duke — a real one, the kind that existed in the newspapers and the marriage columns and her mother’s most feverish dreams.

And he had crossed a ballroom in the heat of July to pull her out of her corner and take her by the waist in front of the whole of Hampshire.

“You might have led with that,” she said. Her voice, she was distantly proud to hear, did not shake.

“It is generally considered the interesting part.”

“It is generally considered the only part.”

“Yes,” he said. And there again was that flicker beneath the charm, quick as a fish turning underwater. “Which is precisely why I did not lead with it. Forgive me. I wanted just once to be asked to dance by a woman who did not already know the acreage of my estate.”

Then the room recovered itself — and recovery in a Hampshire ballroom took the shape of her mother.

Mrs. Ashwell arrived at a speed that ought not to have been possible in a woman of her dimensions, towing Lucy and Mr. Holt and a wake of astonished matrons, her face alight with a joy so undisguised, so nakedly ambitious, that Cassandra felt her own cheeks go hot with secondhand shame.

“Your grace,” her mother breathed, sinking into a curtsy so deep Cassandra feared she might not rise from it. “Your grace, what an honor. We had no notion — that is, we are of course acquainted with your family by the very finest reputation. And my daughter — my elder daughter, Cassandra — make your curtsy, child. Do not stand there gaping like the parlor clock.”

“Mrs. Ashwell.” The Duke turned to her with a warmth so smooth and complete that Cassandra almost missed the way it did not reach his eyes — but she was watching for it now, and she saw.

“Your daughter has done me a great service this morning. I arrived in a foul temper, and she has cured me of it entirely. I am in your debt.”

“Oh — oh, she is a good, clever girl, your grace. A very clever girl. Everyone says so. And though she is not — that is, she has hidden depths.”

“Hidden depths?” murmured Aunt Maud, arriving at Cassandra’s other side. “You have never said. One kind word about the girl’s depths in your life, Margaret. Do stop before you drown in your own honey.”

She said it too quietly for the Duke to catch. Or so Cassandra hoped. Her aunt’s hand found hers and squeezed hard, and Cassandra held onto it like a rope thrown to a swimmer.

The Duke was speaking again — polite, easy, saying the things a duke said. That he was in the county but a fortnight. That he was lately come to the great house at Ravensmore, not ten miles distant, which had stood shut these three years. That he hoped to become better acquainted with his neighbors before the summer was out.

Her mother received each sentence as though it were scripture. And through it all his gaze kept returning to Cassandra — brief, unmistakable. A private thread strung across the noise.

Until at last, in the middle of some nothing her mother was saying, he cut across it with the ease of a man who had never in his life been told to wait his turn.

“Mrs. Ashwell, I wonder if I might have your leave to call. Tomorrow, if it is not an imposition.” He inclined his head. “There is a matter I should like to discuss with your daughter. With Miss Cassandra.”

The silence that followed had a texture. Cassandra could feel it against her skin, cool and total, in a room that a moment before had been all fiddles and heat. Her mother’s mouth opened and produced no sound. Lucy’s hand had risen to her lips.

And Cassandra, standing at the still center of it with her aunt’s fingers crushed in hers, understood two things at once, with perfect clarity.

The first was that whatever this man wanted from her, it was not what her mother — already half fainting with triumph — believed it to be. Dukes did not ask leave to call on the plain elder sister the morning after meeting her. A duke sent flowers, or he sent nothing at all. There was a purpose behind those slate-gray eyes, folded up small and hidden, and it had walked across a ballroom straight to her — and she did not know its shape.

The second was that the corner was gone.

The safe corner. The chair by the window. The whole quiet architecture of being overlooked that she had spent three years building around herself like a wall. It had fallen the instant she put her hand in his, and there was no going back to it now. By nightfall the entire county would know that the Duke of Ravensmore had danced with the elder Miss Ashwell and asked to call. By nightfall she would be a person to whom things happened, whether she wished it or not.

“You may call,” she heard herself say, before her mother could gather the breath to say it for her. “But I make no promise to be glad of it, your grace. I warn you fairly — I am a great deal less charming across a breakfast table than I am across a dance floor.”

He straightened. And for one unguarded moment the charm fell away from him entirely, and what looked out at her from behind it was not a duke at all, but a man who was tired, and watchful, and — she would have staked her chair on it — a little afraid.

“Miss Ashwell,” said the Duke of Ravensmore, “I am counting on it.”

Then he bowed and turned, and the crowd folded shut behind him like water over a stone — and Cassandra was left standing in the wreckage of her own quiet life in the July heat, with the scent of wilting roses in her throat, and the ghost of his rough palm still warm against her hand, and not the faintest idea what she had just agreed to.