Charlotte didn’t know what to do, so she placed the cup of tea that had been brought for “Sherlock” into Mrs. Watson’s hands and sat next to her for a bit.
Upon her return to the parlor, she told Mrs. Marbleton, who had been staring at her own untouched tea, “My brother is of the opinion that this should be a straightforward Bacon’s cipher.”
“What is that?” Mrs. Marbleton’s gaze was dark and intense—an intensity that derived not from hope, but despair.
“It’s a system devised by Francis Bacon to hide a message in relatively plain sight. If you’ll examine the letters that have been pasted, they are of two different typefaces, Caslon and Didot—and only those two.”
Mrs. Marbleton looked closely at the note. “I didn’t notice that earlier.”
“The message starts with a Caslon letter, so that makes Caslon letters A, and Didot letters B. If we go through the entire message letter by letter, we would end up with a string of As and Bs. Mrs. Marbleton, will you write down the As and Bs as I read them aloud?”
Mrs. Marbleton peeled off her gloves. Charlotte handed her a pen and a notebook. “Have you contacted the police by any chance, ma’am?”
Mrs. Marbleton shook her head. “I do not know everythingabout my husband—there is a time of his life that he never talks about. I’ve been glad to leave it alone as there are years of my own life I would rather forget. For as long as I’ve known him, he has been a diamond of the first water—a complete gentleman, adored by his friends, admired by his business associates. But if I were to go to the police, I’m not sure what might be dragged up—in public, no less.”
“I understand, Mrs. Marbleton. You may be assured of our complete discretion.”
When the a’s and b’s had been set down and double checked, Charlotte said, “Now we divide this long string into segments of five letters each, and those sequences ought to correspond with the sequences Bacon had set out as representations for each letter.”
Entirely translated, the message readpackage browns.
The fine grooves beside Mrs. Marbleton’s mouth etched deeper as she studied the words. Then she swallowed and looked up at Charlotte. “I hate to admit it but calling for this letter at the General Post Office was... nerve-racking. May I engage you to come with me to Brown’s Hotel, Miss Holmes? I would feel less deprived of courage if I didn’t need to do this alone.”
Charlotte shivered. But it was only Brown’s, and in broad daylight no less. “Yes, I will accompany you.”
Mrs. Marbleton already had a hansom cab waiting below. But since Mrs. Watson also wished to come along, in the end Charlotte and Mrs. Watson took another cab and followed behind.
“What did you hear from her accents?” Charlotte asked Mrs. Watson, as their vehicle veered around a large town coach.
“English. Or at least she grew up English. But she has spent time on the Continent. America, too—at least ten years there,” answered Mrs. Watson. “What do you know about her?”
“She was born into generous circumstances. But there was areversal of fortune in her youth, of such severity that she didn’t fade into genteel obscurity, but plunged down to outright penury. She had to work at menial positions.”
Asking Mrs. Marbleton for help with writing down the a’s and b’s would make her think she was at least doingsomethingfor her husband. But just as importantly, it allowed Charlotte to observe her hands, which had been well cared for. But the repeated burns a young woman unaccustomed to work suffered in a kitchen did not fade away so readily, not even with the help of the best emollients.
“Obviously at some point her fortunes improved markedly. I can’t be sure whether it happened before or after she left England, but my guess would be after. And this is—or should have been—a triumphant return for her, until her husband’s disappearance.”
Mrs. Watson glanced outside before she looked back at Charlotte. “Will you be all right if it turns out we won’t be able to help her?”
Willyoube all right?Charlotte wanted to ask. But it seemed far too intrusive a question.
“I should manage,” she said.
The package at Brown’s Hotel contained a key, along with a note that stated a room number.
Mrs. Marbleton gripped the key, seemingly paralyzed. Mrs. Watson was similarly immobile, peering at her anxiously. Charlotte mustered a big smile for the clerk. “We were told there would be a prize waiting here, but we haven’t the least idea who has prepared it for us. Would you happen to have a record of the person who left this package?”
The pimply young man reddened. “Ah, yes. Yes, of course. If you’ll give me a moment, miss.”
He brought out a book of registry. “This was left behind by a Mr. York.”
Charlotte glanced at Mrs. Marbleton. The name didn’t appear to signify anything for her. “Is Mr. York still here?”
“He left for Paris two days ago.”
“Was his luggage sent ahead to Southampton, then? Which liner did he take?”
“I believe porters came for his luggage. And I’m almost sure he left on a steamer of the French line.”