"That's dreadful."

"No more so than ladies taking no offense to being cut when they see a gentleman out with his mistress."

"Another reprehensible habit. If I saw Robert with his mistress, I would never stand aside and pretend that I didn't know him."

"Robert Brandon has a mistress?"

"Doesn't he?" I asked, all innocence.

"Don't try to fish for information, Emily." He poured himself a glass of whiskey. "Where are the letters?" I removed them from the safe, where I had kept them since the theft, and spread them out on my desk.

"I feel as if I'm missing something obvious when I look at them," I said.

"That, my dear, is code breaking. Do you want me to stay and help?"

"No, I'll be all right. I know I can do this."

"Then I'd like to speak to your servants, if you've no objection. Someone must know who came into the library when the letters were taken. They may be more willing to talk to me than to you or Davis."

I let him, of course, pleased that I was to have the more interesting task. Once he had left the room, I picked up the first pair of letters, beginning by looking for words that were repeated in both of them. Nothing. I wrote down the first letter of each word and was left with nonsense. Hardly surprising; that would be too obvious. The second pair of letters offered up nothing, either. The only thing that struck me as notable about any of them was that neither writer ever seemed to refer back to the previous letter he had received. This spurred me on, because one would not expect to find such a thing in an ordinary correspondence.

Colin returned more than an hour later. "You certainly do have devoted servants."

"Of course I do," I said, smiling.

"But a few raise my suspicions. You've an under gardener who's in rather a lot of debt, and a maid who's more sympathetic to Charles Berry than she ought to be."

"Molly!"

"You told me the circumstances under which you hired her, yet she still is in contact with the man."

"How is that possible?"

"It could be nothing more than coincidence, but she told me that she has run into him on more than one occasion since coming to your house."

"Do you think she is spying for him?"

"I don't know, but I would keep a close eye on her."

"And the under gardener?"

"He's a good sort, but inclined to gamble."

"How great are his debts?"

"Enough to tempt him to try to earn some extra."

"But he doesn't have the access to the house that Molly does."

"Quite right. There's another maid, Lizzie, who's new to the household. Have you had any trouble with her?"

"She's not the most efficient girl, but I wouldn't say that she's been a problem. Does she strike you as suspicious?"

"Not particularly, but I think it wise to look closely at anyone who has so recently joined your service." He stood behind my chair. "Any luck with the letters?"

"I'm getting there."

"I'm not surprised." I looked up at him. With his finger, he traced around the cut on my cheek. "I will not let him hurt you again, Emily, whoever he is."

How easy it would have been to throw myself against him at that moment, to beg him to decipher the code, find the thief, protect me from this danger. I resisted, however, and as I did, I realized that it was not so much to satisfy myself as to keep from being diminished in his opinion. He might offer protection, but I knew that he no more wanted a helpless mate than I wanted to be one.

22

"It's not working, Emily." Ivy handed the books I'd given her back to me. "I've tried four nights in a row, and Robert told me to ask the doctor for something to help me sleep."

"He didn't stay with you?"

"He sat on the edge of the bed until I managed to fall asleep."

"Oh dear."

"I don't know what to do."

"What exactly did you say to him?"

"I did just what you said. I left my door open and called to him when he came in. He was concerned to find me still awake, and I explained that although I was dreadfully tired, I couldn't sleep."

"I think he took you at your word. You couldn't very well expect that he would...that...well...he thought you needed rest. Next time look at him wistfully while you speak, make it clear that you've no intention of sleeping but that you want his...company."

"Be serious, Emily."

"I'm quite serious. Colin gave me this for you." I put The Woman in White on the table next to her. "It comes highly recommended."

"I don't know how much longer I can keep this up. I'm exhausted."

"I'm sure Robert is just trying to be considerate."

"He's got to know that being considerate is never going to produce an heir."

"Ivy, I'm shocked!"

"Well you shouldn't be. You were married."

"Not shocked like that. Shocked to hear you speak in such a way." I wanted to ask her if she suspected her husband had a mistress, but did not want to give her something else to worry about. "You two always seem perfectly happy when I see you at parties."

"He's all attention when he needs to be."

"Do you want to help me with my investigation?" I asked, hoping to distract her.

"How?"

I showed her the letters and explained the general principles of steganography. For the next hour, we pored over them but found nothing.

"I have an idea, Emily," Ivy said. "It's probably silly — "

"No, tell me."

"Have you stepped away from them? Looked from a distance? I'm thinking of how the paintings of the impressionists look so different close up. You almost can't make sense of them. Of course, you can't exactly read letters from afar, but — "

"Ivy, that's inspired," I said. Taking a step back from my desk enabled me to see more than a single letter at a time, and if it were possible to be enlightened instantaneously, I was at that moment.

Ivy spoke before I could. "It was stupid. There's nothing to see."

"No! Ivy, don't you see it? Of course not. You haven't read the letters a thousand times like I have. But look — look at the numbers."

"Numbers?"

"There is a number written out in every single one of them. Il y a dix ans que j'ai lui parlé. Ten. J'ai quatre livres. Four."

"Yes, yes, I see."

I reached for a blank piece of paper. "This must be the key." For the rest of the afternoon, we played with the numbers, but still the formula eluded us. Nonetheless, I knew we were on the right track. Eventually, we would hit on a permutation that produced something other than a random string of letters.

"Have you figured out who gave these to you?" Ivy asked.

"I'm assuming the Marie Antoinette thief. I can't imagine who else it could be."

"And you've no idea who he is?"

"No. Unfortunately not." I told her my ideas for drawing him out of hiding.

"It sounds as if he's not the sort of man whom you can goad into revealing himself," she said. "But what if you baited him?"

"Ivy, I'm impressed. Tell me more."

"What if you had something that belonged to the French queen?"

"I don't know how he could possibly break into my house again. It's too well guarded."

"Mine is not. And my husband is rarely home. You could come stay with me to keep me company."

"Robert wouldn't let me into the house with an object certain to lure a thief to his door," I said.

"I suppose you're right."

I knew better than to suggest that we not inform Robert of the scheme. "What if I were to make a production out of it? Let's say I had a necklace of Marie Antoinette's and told everyone that I was not afraid to wear it. He could take it directly from me at a ball. Your ball."

"That sounds more dangerous than luring him into my house. I don't like the idea of your wearing the piece when he comes after it."

"It might work, though, and I don't think he would harm me. How could he in a crowded ballroom?"

"It would be a departure from his normal modus operandi. He always breaks into houses. And at any rate, you don't own anything with a provenance that would attract him."

"No, but I could buy something that does. Or pretend to have bought such a thing. Cécile mentioned that the stones from the notorious diamond-necklace affair still exist. I could find out who owns them."

"And persuade the owner to part with them?"

"I think most people view owning Marie Antoinette objects as a liability at the moment."

"Only people in London. There's no reason to think the diamonds are here."

"You may be right. I could have a copy made, though, and ask the owner of the true necklace to act as if she sold it to me."

"What would you say to this man if you met him?"

"I'm not sure. I'd like to know why he's so fixated on Marie Antoinette."

"Are you absolutely certain that none of the objects he's stolen have come up for sale on the black market?"

"It's difficult to determine these things, but so far as I can tell, yes. He's keeping what he steals."

"Or giving it all to Charles Berry," Ivy said. "Who other than the heir to the House of Bourbon would have such a focused interest?"

"An excellent point, and we mustn't forget the list I found in his room at the Savoy," I said. "I'd like to know more about the evidence Mr. Berry uses to support his claim. He's certainly not the first man who declared himself the direct descendant of Louis XVI and Marie Antoinette. Apparently, early in the century, there were no fewer than forty pretenders vying for the prince's rights."