Do chuir siad na Rуisнnн Bhбn ar an bealach go bua.

         Agus iad toilteannach agus buail le hнobбirt an teannta ifrinn.

         Iad ag leanъint le bealach glуr an Bhanrнon.

“Do choo-ir see-ad na Royseence …” he read aloud, slowly. “Is it a cipher, do you suppose? Or a code?”

“Is there a difference?”

“Yes, there is,” Hal said absently. He held it up to the light from the window, presumably to see if anything showed through, then bent and held it over the fire.

Grey stopped his involuntary move to snatch the paper; there were ways of doing secret writing, and most of those showed up with heat. Though why one would add an overtly mysterious code to a paper with hidden writing, thus drawing attention to it …

The paper was beginning to scorch and curl at the edges, but nothing was showing up save the original words, cryptic as ever. Hal pulled it back and dropped it smoking on the desk, shaking his fingers.

“For what the observation is worth,” Grey said, gingerly picking up the hot sheet, “I don’t see why Carruthers would trouble himself with encoding this particular document. Given the rest of it, I mean.”

Hal compressed his lips but nodded. “The rest of it” included specific denunciations of a number of men—some of them powerful—who had been involved in Siverly’s defalcations. If Carruthers trusted Grey to handle such incendiary stuff, what might he have balked at?

“Besides, Charlie knew he was dying,” Grey said more quietly. He laid the sheet on top of the others and again began to tidy them into a square. “He left this packet addressed to me. He expected me to use it. Why would he have tried to conceal some part of the information from me?”

Hal shrugged, acknowledging the argument.

“Then why is it here? Included by mistake?” Even as he suggested this, he was shaking his head. The packet itself had been meticulously assembled, with documents in chronological order. Some of the papers were Carruthers’s own testimony; some were statements signed by other witnesses; some were original army documents—or perhaps copies made by a clerk. It was impossible to tell, unless the original had borne a stamp. The whole bundle spoke of care, precision—and the passion that had driven Carruthers past his own weakness in order to accomplish Siverly’s destruction.

“It is Carruthers’s hand?” Unable to let a puzzle alone, Hal reached out and took the sheet of gibberish from the top of the stack.

“Yes,” Grey said, though that much was obvious. Carruthers wrote a clear, slanted hand, with oddly curled tails on the descending letters. He came to look over Hal’s shoulder, trying to see if the paper provided any clue they could have missed.

“It’s laid out like verse,” he observed, and, with the observation, something fluttered uneasily at the back of his mind. But what? He tried to catch a glimpse of it, but the thought skittered away like a spider under a stone.

“Yes.” Hal drew a finger down the page, slowly. “But look at how these words are repeated. I think it might be a cipher, after all—if that were the case, you might be picking a different set of letters out of each line, even though the lines look much the same in themselves.” He straightened up, shaking his head. “I don’t know. It could be a cipher that Carruthers stumbled onto in Siverly’s papers but to which he hadn’t the key—and so he merely copied it and passed it on in hopes that you might discover the key yourself.”

“That makes some sense.” John rocked back on his heels, narrowing his eyes at his brother. “How do you come to know so much about ciphers and secret writings?”

Hal hesitated, but then smiled. Hal smiled rarely, but it transformed his face when he did.

“Minnie,” he said.

“What?” Grey said, uncomprehending. His sister-in-law was a kind, pretty woman, who managed his difficult brother with great aplomb, but what—

“My secret weapon,” Hal admitted, still smiling at whatever thought amused him. “Her father was Raphael Wattiswade.”

“I’ve never heard of Raphael Wattiswade.”

“You weren’t meant to,” his brother assured him, “and neither was anyone else. Wattiswade was a dealer in rare books—traveled to and from the Continent regularly, under the name Andrew Rennie. He was also a dealer in intelligence. A spymaster … who had no sons.”

Grey looked at his brother for a moment.

“Tell me,” he begged, “that her father did not employ Minnie as a spy.”

“He did, the scrofulous old bugger,” Hal replied briefly. “I caught her in my study one night during a party, magicking the locked drawer of my desk. That’s how I met her.”

Grey didn’t bother asking what had been in the drawer. He smiled himself and picked up the decanter of sherry from the tea tray, unstoppering it.

“I gather you did not immediately have her arrested and taken before a magistrate?”

Hal took a sherry glass and held it out.

“No. I had her on the hearth rug.”

The decanter slipped from Grey’s fingers, and he caught it again by pure luck, splashing only a little.

“Did you, indeed?” he managed.

“Give me that, butterfingers.” Hal took the decanter from him, and poured carefully, eyes fixed on the rising amber liquid. “And, yes, I did.”

Grey wondered, reeling, whether Minnie had been a virgin and decided instantly not to ask.

“Then I put her into a coach, made her tell me her address, and said I would call on her in the morning, to ask after her welfare,” Hal said offhandedly, and passed John a glass. “Here. Hang on to it this time. You look as though you need it.”

He did, and drank off the sherry—which wasn’t bad—in a couple of gulps.

“She didn’t … actually give you her address, did she?” he asked, and cleared his throat, trying not to glance at the hearth rug. It had been there for years and years, a very worn small carpet with the family crest woven into it, much pocked with burn marks and the edge of it scorched. He thought it had been a wedding present from Hal’s first wife, Esmй, to her husband.

Hal laughed.

“No, of course not. Neither did she tell it to the coachman—persuaded him to let her out at Kettrick’s Eel-Pye House, then legged it down the alley and disappeared. Took me nearly six months to find her.”

Hal disposed of his own sherry with dispatch, then plucked the questionable sheet off the desk again.

“Let me show her this. She’s not had much opportunity to practice of late, but she might be able at least to tell us if it is encoded.”

Left alone with the decanter and the hearth rug, Grey poured another drink and went back to the balcony. The garden was quiet now; the sky had clouded over and the boys had gone in for their tea—he could hear them rumpusing in the nursery overhead. Dottie and her nurse were both sound asleep on the grass by the fish pool, Dottie’s gown still firmly in the nurse’s grasp.

He wasn’t quite sure whether Hal’s story had shocked him or not. Hal made his own rules; John had long been aware of that. And if he’d temporarily had the upper hand of Minerva Wattiswade, he’d long since lost it—Hal himself knew that.

He glanced up at the ceiling, the recipient of a loud crash as a chair was overturned, shrill voices rising in the aftermath. How old was his nephew Benjamin? He glanced at the hearth rug. He’d been abroad when Benjamin was born, but his mother had written to apprise him of the event—he remembered reading the letter in a tent, with rain pattering on the canvas overhead. He’d lost three men the day before and was suffering some depression of spirit; news of the child’s birth had comforted him.

He imagined it had comforted Hal, too. Grey had learned—recently, and quite by accident—that Hal’s first wife, Esmй, who had died in childbirth and the child with her, had been seduced by one of Hal’s friends, Nathaniel Twelvetrees, and that Hal had subsequently killed Twelvetrees in a duel. He thought that his brother had likely been quite insane at the time. How long after that had he met Minnie?