Read Chapter 18: A Dangerous Alliance

The corridor ended at a service stairwell that smelled of boiled cabbage and coal smoke. Jack flattened himself against the wall, listening. Below, the murmur of the crew, the clang of a pot. Above, the distant sound of a woman weeping.

He found Margaret in a linen closet three doors down, her back against a shelf of folded towels, breathing hard. Her eyes were bright with fear and something else—exhilaration, maybe. She looked at the map in his hand.

“You got it.”

“I got more than that.” Jack unfolded the forged letter and pressed it into her palm. “Vance means to sell the whole registry to the Ferrier gang in Boston. Not just Anna’s list—everything. Every vault, every box, every name.”

Margaret read it twice, her lips moving silently. When she looked up, her expression had changed. The fear was gone, replaced by a cold calculation Jack recognized. It was the look of a woman who had been played and was now figuring out how to play back.

“The Ferrier gang,” she repeated. “They burned a bank in Charlestown in ’09. Killed two tellers.”

“I know.”

She folded the letter carefully and tucked it into her bodice. “Then we can’t just run. We have to expose him. All of it.”

Jack almost laughed. “Expose him to who? The captain is busy watching his ship sink. The master-at-arms thinks I’m a thief—Vance made sure of that. Moran wants me dead or in irons by midnight, which is now—” he checked the hallway clock through the slatted door, “—eleven minutes away.”

“Then we don’t stay on this ship.”

“We’re on an ocean, Margaret. There’s nowhere to go.”

She looked at him for a long moment. Something shifted in her face—a decision being made. “There is. If we survive this, there’s a man in New York. Harold Pemberton. He’s a banker, but he also buys information. Discreetly. No questions asked.”

Jack’s brow furrowed. “Pemberton and Company? The one on Wall Street?”

“You know him?”

“I know of him. He’s a fence in a three-piece suit. Deals in secrets, not securities.” Jack studied her. “How do you know a name like that?”

Margaret’s jaw tightened. “I’ve done work for him before. Transcription, mostly. Letters that needed copying. He pays well and remembers favors.”

Jack tilted his head. The pieces clicked into place slowly, a lock turning in his mind. “You’re not a widow playing at cards, are you? You’re one of his agents.”

“I’m a woman who needed money and had a talent for reading people’s handwriting.” She met his gaze, unflinching. “That’s all.”

“And the code work? The notebook Vance thinks he stole from Anna?”

Margaret hesitated. Then she reached into her pocket and pulled out a thin silver pencil and a folded scrap of paper. She flattened it against the shelf and began writing in quick, sure strokes.

“Anna Jackson used a Vigenère cipher,” she said, not looking up. “Simple enough if you have the key. But the last page—the one that mattered—she scrambled it. She added a transposition layer. A rail fence pattern, three rails deep.”

Jack watched her hand move. “How do you know that?”

“Because she told me. Two nights ago, over tea in the Verandah Café. She was terrified, Jack. She said she’d made a mistake, that she’d hidden the real location inside the cipher so only someone with both halves could read it. She gave me the second half.”

Jack stared at her. His mouth opened, then closed.

“You’ve had it the whole time.”

“I had part of it. You had the rest—memorized.” Margaret finished writing and held up the paper. It was a grid of letters, half of them crossed out, the remaining ones forming a pattern. “The key isn’t a word. It’s a sequence. Numbers, not letters.”

She wrote: 3-7-1-9-4-2-8-5-6.

“Anna’s birthday. March 7, 1891.”

Jack blinked. “How do you know her birthday?”

“It’s in the way she writes her sevens. Crossed with a Spanish flourish. And the nine is open at the base—that’s Continental training.” Margaret shrugged. “I read people through their pens.”

Jack looked from the paper to her face. “You really are one of Pemberton’s people.”

“I told you. I transcribe.”

“And you just happened to be on this ship when Anna’s list surfaced?”

“I’m on this ship because Anna asked me to come. She said she needed someone she trusted to verify a document. She was going to expose Vance’s operation—the smuggling, the forged ledgers, the whole rotten scheme.” Margaret’s voice dropped. “She didn’t tell me it would cost her life.”

Silence hung between them. The ship groaned, a low bass note that vibrated through the floor. Margaret steadied herself against the shelf.

“She showed me the safe house address,” Margaret said quietly. “Not the name—just the sequence. London. A house on Milner Square. Number eleven. She said if anything happened to her, the list needed to reach Pemberton, and he would know what to do with it.”

Jack’s heart was hammering. “Milner Square?”

“I can’t be sure that’s what it says. Without the full cipher, the transposition could shift the numbers differently. I’ve only got the one pass at it.” She held up the paper. “But if you’ve got the original sequence memorized, I can decode it properly. We could know tonight.”

Jack hesitated. Every instinct screamed at him not to trust anyone. His whole life had been built on the principle that the only person he could count on was himself. But the ship was listing, Vance was hunting them, and Moran’s deadline was ticking toward zero.

“If we do this together,” he said slowly, “we’re in it to the end. Both of us. Split down the middle, whatever Pemberton pays.”

Margaret raised an eyebrow. “You’d share the proceeds with a woman you just met?”

“I’d share them with the only person on this ship who hasn’t tried to kill me or turn me in.” Jack extended his hand. “Half now, half when we survive. And we will survive, Margaret. I swear it.”

She looked at his palm for a long moment. Then she took it.

Her grip was cool and firm. “If we live through this, Jack O’Leary, you and I are going to have a very interesting conversation about what you were really doing in that steerage bunk.”

He smiled despite himself. “I look forward to it.”

Footsteps sounded on the stairwell below. Heavy boots, moving fast.

Margaret’s eyes went wide. “Moran’s men.”

Jack pulled her toward the opposite door. “This way. The kitchen route.”

“You said the kitchen was for the dinner plan.”

“Plans change.” He shoved the map into his coat and reached for the latch. “We need to get to the boat deck. If I know Vance, he’ll have a spot reserved in the first lifeboats. And if we’re going to decode that sequence before we’re in the water, we need somewhere quiet.”

Margaret slipped the paper back into her pocket. “You trust me that much?”

“I trust that neither of us survives alone.” Jack eased the door open and peered into the corridor. Empty, for now. “Come on.”

They moved as one, two shadows slipping through the service passage toward the smell of roasting meat and the distant, rising sound of human panic.

Behind them, the boots grew louder.

The ship groaned again, deeper this time. Jack felt it in his bones. They didn’t have much time—and the iceberg had just taken the first bite.