Vaughn looked blandly up as Mary and her companion approached, as though it were nothing out of the ordinary to be receiving notes from masked women.

Perhaps for Vaughn, it wasn't.

Mary's lips pressed together in a tight line. As for the woman…Mary glanced sharply to the side, but the woman was gone, as rapidly and quietly as the note into Vaughn's pocket.

If that didn't signify skullduggery, Mary didn't know what did. She narrowed her eyes at Vaughn in implicit question, but if Vaughn noticed, he chose not to comment.

Instead, he raised his cane in languid greeting. "Ah, St. George, Miss Alsworthy. Have you had a pleasant coze?"

Mary fancied she could see the outline of the note, pressing against the closely cut fabric of his jacket.

With none of her usual finesse, she broke in, "My lord, I believe I had the pleasure of meeting a friend of yours this evening. After I was so unfortunately and accidentally separated from my sister."

"Indeed?" Vaughn raised a casual eyebrow. "My sympathies, then. Friends are a tedious lot. Enemies, on the other hand — "

Shrugging, Vaughn abandoned the topic as though bored with it. Reaching into his pocket he extracted, not the treacherous little piece of paper, but a silver snuffbox, as intricately pierced and chased as a medieval saint's reliquary.

"And I suppose you are an expert on the topic," said Mary crossly, as Vaughn wordlessly offered the box to a bemused St. George. Next to Vaughn, St. George seemed as tame and domestic as a plate of blancmange.

Snapping shut the lid of his snuffbox, Vaughn clicked his tongue in exaggerated deprecation. "Far be it from a dilettante such as my humble self to claim virtuosity in anything. I am but an eager amateur and unworthy of any such accolades." As his eyes met Mary's, his voice unaccountably dropped, took on a different cast. "Entirely unworthy."

Looking in polite incomprehension from one to the other, St. George shook his tawny head as though to clear it. "Would you be so kind as to excuse me? I really ought to see if I can find my sister…."

His honest blue eyes lingered just a moment too long on Mary, as though waiting for her to forestall him.

"Happy hunting, my dear St. George," drawled Lord Vaughn, shattering the moment.

St. George forbore to respond in kind. With a polite nod to Vaughn and a warmer salutation to Mary, he set out in search of his lost sister and her latest pet turtle. But he could not quite resist casting a look back over his shoulder at Mary.

Seeing it, Mary smiled and waggled her fingers at him.

St. George continued on his quest with a spring in his step that hadn't been there before.

Lord Vaughn's dry voice broke into their byplay. "Don't worry. I won't keep you from your saintly suitor long."

Mary, who had been worrying about nothing of the kind, felt the color rise to her cheeks — with irritation, she assured herself. "You might have been more subtle with him," she said, hating the carping note she heard in her own voice.

"Subtlety is wasted on such as he," Vaughn said dismissively. Mary wished she could have detected jealousy in his voice, but it wasn't there. There was nothing but a faint tang of impatience, with St. George — or with her? Vaughn's eyes scanned the crowd beyond her shoulder.

Searching for the blond woman?

"I met your quarry," Mary said, her tone harsher than she had intended.

Vaughn's eyes dropped back to her, as though almost surprised to find her still there. Resting both hands on the head of his cane, he said mildly, for him, "So I surmised."

Was there nothing that would light a spark of interest in those pale gray eyes? She remembered the way they had flashed silver last night, in the cloistered confines of the Chinese chamber, where the whole room had closed about them until it had shrunk to the space of her arms around his shoulders, his lips on hers.

But that had been a different night, a different place. A different man. Her shoulders still ached from the Black Tulip's bruising grip. Mary's brows drew together dangerously as she regarded her supposed coconspirator, urbane and unruffled in his black brocade coat and immaculately tied cravat.

Where was he while she was being molested by dangerous French spies? It was one thing to stay out of sight, so as not to alarm their quarry, but he might at least have lurked in the bushes. But, no. Lord Vaughn couldn't be bothered. He was too busy engaging in tкte-а-tкtes with short blondes.

Mary folded her arms across her chest and favored Lord Vaughn with a look that would have felled a lesser man. "He wants to meet again," she said abruptly.

Vaughn lifted one brow. "You?"

Mary's temper frayed dangerously. "No, the Queen of Sheba. Do you think that could be arranged?"

Reluctantly, Vaughn's lips split into a lazy grin, his teeth white against his shadowed face. "A few draperies, a little blackamoor to carry your train, and we'll have Solomon himself swooning at your feet."

She didn't want Solomon and she certainly didn't want the Black Tulip. At the moment, she wasn't even entirely sure she wanted Vaughn, unless it was to strangle him.

Before she could pursue that happy line of thought, Vaughn spoke again, his voice brisk and business-like. "When?"

"The King has announced his plans to review recruits in Hyde Park on the twenty-sixth of this month. The — your friend has requested that I meet him there to receive further instructions." Mary couldn't quite suppress a slight shudder of distaste.

"The twenty-sixth…" Vaughn paused a moment for mental calculation, one hand on the head of his cane, head tilted in the classic pose of cogitation. "He gives us the better part of a fortnight."

"Us?" Mary arched an inquiring eyebrow, deciding to forgo strangulation for the present. She rather liked the sound of the word "us." It had a pleasant ring to it, almost as pleasant as "Lord and Lady Vaughn."

Tapping the end of his walking stick against the gravel, Vaughn turned abruptly to examine one of the large paintings by Francis Hayman that decorated the open portico of the Pavilion. Frozen in paint, falsely accused Hero swooned in the arms of her cousin Beatrice in a convincing counterfeit of death.

Vaughn's eyes dwelled on Hero's lifeless features as he spoke in a voice as flat as the paint. "I will, of course, escort you. It was, after all, part of our agreement."

Mary didn't like the sound of that nearly as much.

On an impulse, she scooped a glass of wine off the tray of a passing waiter. The liquid gleamed garnet red in the light of the lanterns, like the wine in Vaughn's glass in the Chinese chamber last night as he offered it to her. She had declined then. Now — Mary lifted the glass in a silent toast, an invitation.

She didn't need to explain what it meant; he knew, as he always seemed to know.

Vaughn propped himself against his cane, the picture of languid unconcern, but his pales eyes glittered like the diamond on his finger as they narrowed on hers.

"I thought you didn't indulge."

"Perhaps I've changed my mind," Mary said recklessly, tilting the glass to her lips without breaking their gaze. Using her tongue, she flicked a stray drop of wine from her lower lip. "It is a woman's prerogative, is it not?"

Taking care not to brush her fingers, Vaughn reached out and abstracted the glass neatly from her lifted hand.

"Some prerogatives, Miss Alsworthy, are best not employed."

"Why not?" Mary demanded, wishing she could stamp her foot as she had when she was a child and thwarted in some small desire. But one didn't stamp one's foot in front of a peer of the realm, however much one wanted to.

"Because" — Vaughn's lips twisted into a crooked smile — "they have grown out of date."

Placing the glass firmly back down upon the tray, he looked inscrutably down at her, in a way that made Mary wonder if she had a smudge on her cheek or had suddenly grown a third eye in the center of her forehead. "If you ask him, I'm sure Mr. St. George will fetch you a lemonade."

Over Vaughn's shoulder, Mary could see her sister bustle across the Grove, dragging her tall husband by the hand, anxiously scanning the crowd. Spotting Mary with Vaughn, Letty raised her hand in greeting, her pace quickening.

Mary made an impatient gesture. "What if I don't want lemonade?" she protested, her blue eyes urgent on his. "Lemonade is so…insipid."

"Perhaps." Vaughn's bland countenance was a study in indifference. "But it is far better for your constitution. Enjoy your lemonade, Miss Alsworthy."

With a curt nod to her relations, Lord Vaughn strode off into the glittering crowd and was gone, leaving Mary with nothing but bruised shoulders and the sour taste of lemons.

Chapter Sixteen

"Dempster."

If the archivist was pleased to see us, the same definitely couldn't be said of Colin. Dropping his hand from my elbow, he shoved both hands in his pockets, his attention entirely fixed on Dempster. He looked like a gunslinger about to face off at the OK Corral.

Dempster's eyes went from me to Colin in open speculation. His lips curved at the corners in a way reminiscent of Siamese cats and other creatures generally associated with snatching canaries from cages.

"You never told me you knew the Selwicks, Eloise," he said, in a way that made it sound like we were old and intimate acquaintances, as opposed to our five-minute chat that day.

The implication was so entirely at odds with the reality, that I was rendered momentarily speechless. I looked at him sharply, but before I had time to phrase a reasonably coherent comment, Colin had jumped in.