Quarry glanced at the Chinese screen again. The windows were all open to the air, and the glorious June sunshine was streaming through them in floods. The air was like crystal; Grey could see individual grains of salt against the linen cloth, where he had upset the saltcellar in his agitation.

“Ah,” Quarry said. He fell silent for a moment, tracing a pattern with one forefinger in the spilled salt.

He didn’t ask whether Grey would recognize a chancrous sore. Any young serving officer must now and then have been obliged to accompany the surgeon inspecting troops, to take note of any man so diseased as to require discharge. The variety of shapes and sizes—to say nothing of conditions—displayed on such occasions was common fodder for hilarity in the officers’ mess on the evening following inspections.

“Well, where does he go whoring?” Quarry asked, looking up and rubbing salt from his finger.

“What?” Grey looked at him blankly.

Quarry raised one thick brow.

“Trevelyan. If he’s poxed, he caught it somewhere, didn’t he?”

“I daresay.”

“Well, then.” Quarry sat back in his chair, pleased.

“He needn’t have caught it in a brothel,” Grey pointed out. “Though I admit it’s the most likely place. What difference does it make?”

Quarry raised both brows.

“The first thing is make certain of it, eh, before you stink up the whole of London with a public accusation. I take it you don’t want to make overtures to the man yourself, in order to get a better look.”

Quarry grinned widely, and Grey felt the blood rise in his chest, washing hot up his neck. “No,” he said shortly. Then he collected himself and lounged back a little in his chair. “Not my sort,” he drawled, flicking imaginary snuff from his ruffle.

Quarry guffawed, his own face flushed with a mixture of claret and amusement. He hiccuped, chortled again, and slapped both hands down on the table.

“Well, whores ain’t so picky. And if a moggy will sell her body, she’ll sell anything else she has—including information about her customers.”

Grey stared blankly at the Colonel. Then the suggestion dropped into focus.

“You are suggesting that I employ a prostitute to verify my impressions?”

“You’re quick, Grey, damn quick.” Quarry nodded approval, snapping his fingers for more wine. “I was thinking more of finding a girl who’d seen his prick already, but your way’s a long sight easier. All you’ve got to do is invite Trevelyan along to your favorite convent, slip the lady abbess a word—and a few quid—and there you are!”

“But I—” Grey stopped himself short of admitting that far from patronizing a favored bawdery, he hadn’t been in such an establishment in several years. He had successfully suppressed the memory of the last such experience; he couldn’t say now even which street the building had been in.