Persons. That, Grey realized, almost certainly meant Dickie Caswell. For Bowles to know about O’Connell’s presence at Lavender House, someone there must have told him. The obvious conclusion was that Caswell was the “source” who had provided the information regarding O’Connell—which in turn implied that Caswell was a regular source of information for Mr. Bowles and his shadowy office. That was rather worrying, but there was no time to think of such things just now.

“You said that Mr. O’Connell visited Lavender House upon the Friday,” Grey said, taking a fresh grip on the conversation. “Do you know whom he spoke with there?”

“No.” Bowles’s lips thinned to nothing. “He went to the back door of the establishment, and when asked his errand, replied that he was looking for a gentleman named Meyer, or something of the sort. The servant who saw him told him to wait and went away to inquire; when he returned, O’Connell had gone.”

“Meyer?” Quarry leaned forward, interjecting himself into the conversation. “German? A Jew? I’ve heard of a fellow of that name—traveling coin-dealer. Think he works in France. Very good disguise for a secret agent, that—going about to big houses, carrying a pack, what?”

“There you have me, sir.” Bowles seemed mildly annoyed by the admission. “There was no such person at Lavender House, nor was any such known by that name. It does seem most suspicious, though, given the circumstances.”

“Oh, rather,” Quarry said, with a tinge of sarcasm. “So, then. What d’you suggest we do?”

Bowles gave Quarry a cold look.

“It is of the utmost importance that we discover the man to whom O’Connell intended to sell his secrets, sir. It seems clear that this was a crime of impulse, rather than deliberate espionage—no one could have known that the requisitions would be exposed and unattended.”

Quarry gave a grunt of agreement, and sat back, arms folded across his chest.

“Aye, so?”

“Having recognized the value of the information, though, and removed the documents, the thief—call him O’Connell, for convenience—would then be faced with the necessity of finding someone to pay for them.”

Bowles pulled several sheets of rough foolscap from the stack before him, and spread them out. They were covered with a round scrawl, done in pencil, and sufficiently illegible that Grey could make out only the occasional word, read upside down.

“These are the reports that Jack Byrd supplied to us through Mr. Trevelyan,” Bowles said, dealing the sheets upon the table one by one. “He describes O’Connell’s movements, and notes the appearance—and often the name—of each person with whom he observed the Sergeant conversing. Agents of this office”—Grey noticed that he didn’t specify whichoffice—“have located and identified most of these persons. There were several among them who do indeed have tenuous connexions with foreign interests—but none who would themselves be able to accomplish a contract of such magnitude.”

“O’Connell was looking for a purchaser,” Grey summarized. “Perhaps one of these small fish gave him the name of this Meyer for whom he was searching?”

Bowles inclined his round little head an inch in Grey’s direction.

“That was my assumption as well, Major,” he said politely. “‘Small fish.’ A very picturesque and appropriate image, if I may say so. And this Meyer may well be the shark in our sea of intrigue.”

Grey caught a brief glimpse from the corner of his eye of Harry making faces, and coughed, turning a bit to lead Bowles’s gaze in his own direction.

“Your . . . um . . . source, then—could he not discover any such person, if the suspect had an association with Lavender House?”

“I should certainly expect so,” Bowles said, complacency returning. “My source disclaims all knowledge of such a person, though—which leads me to believe either that O’Connell was misdirected, or that this Meyer goes by an alias of some sort. Hardly an unlikely possibility, given the . . . ah . . . nature of that place.”

“That place” was spoken with such an intonation—something between condemnation and . . . fascination? gloating?—that Grey felt a brief crawling sensation, and rubbed instinctively at the back of his hand, as though brushing away some noxious insect.

Bowles was reaching into yet another folder, but the paper he withdrew this time was of somewhat higher quality; good parchment, and sealed with the Royal Seal.

“This, my lord, is a letter empowering you to make inquiries in the matter of Timothy O’Connell,” Bowles said, handing it to Grey. “The language is purposely rather vague, but I trust you may employ it to good use.”

“Thank you,” Grey said, accepting the document with profound misgivings. He wasn’t sure yet why, but his instincts warned him that the red seal indicated danger.

“Well, then, d’ye want Lord John to go back there and rummage the place?” Quarry asked, impatient. “We’ve a tame constable; shall we ask him to collect the Jews in his district and put their feet to the fire until they cough up this Meyer? What shall we do, for God’s sake?”

Mr. Bowles disliked being hurried, Grey could see. His lips thinned again, but before he could reply, Grey made his own interjection.

“Sir—if I might? I have something—it may be nothing, of course—but there seems to be an odd connexion . . .” He explained, as well as he could, the appearance of an unusual German wine at Lavender House and its apparent connexion with Trevelyan’s mysterious companion. And Jack Byrd, of course, was connected to Trevelyan.

“So I am wondering, sir, whether it might be possible to trace buyers of this wine, and thus perhaps to fall upon the scent of the mysterious Mr. Meyer?”

The small bulge of flesh that served Mr. Bowles for a brow underwent convulsions like a snail thinking fierce thoughts—but then relaxed.

“Yes, I think that might be a profitable channel of inquiry,” he conceded. “In the meantime, Colonel”—he turned to Quarry with an air of command—“I recommend that you apprehend Mr. Scanlon and his wife, and make such representations to them as may be appropriate.”

“Up to and including thumbscrews?” Harry inquired, standing up. “Or shall I stop at knouting?”

“I shall leave that to your impeccable professional judgment, Colonel,” Bowles said politely. “I shall handle further investigations at Lavender House. And Major Grey—I think it best that you pursue the matter of Mr. Trevelyan’s potential involvement in the matter; you seem best placed to handle it discreetly.”

Meaning,Grey thought, that I now have “scapegoat” written on my forehead in illuminated capitals. If it all blows up, the blame can be safely pinned to my coat, and I can be shipped off to Scotland or Canada permanently, with no loss to society.

“Thank you,” Grey said, handling the compliment as though it were a dead rat. Harry snorted, and they took their leave.

Before they had quite reached the door, though, Mr. Bowles spoke again.

“Lord John. If you will accept a bit of well-meant advice, sir?” Grey turned. The vague blue eyes seemed focused at a spot over his left shoulder, and he had to steel himself not to turn and look to see whether there was in fact someone behind him.

“Of course, Mr. Bowles.”

“I think I should hesitate to allow Mr. Joseph Trevelyan to become a relation by marriage. Speaking only for myself, you understand.”

“I thank you for your kind interest, sir,” Grey said, and bowed, most correctly.

He followed Harry down the rickety stair and out of the noisome yard to the street, where they both stood for a moment, breathing deeply.

“Knouting?” Grey said.

“Russian flogging,” Quarry explained, tugging at his wilted stock. “With a whip made of hippopotamus hide. Saw it once; flayed the poor bugger to the bone in three strokes.”

“I see the appeal,” Grey agreed, feeling an unexpected kinship with his half-brother Edgar. “You haven’t got a spare knout you might lend me, before I go speak to Trevelyan?”