Chapter 1. Six Names on One Contract

At forty meters the water was the color of old glass — not blue, not green, but something in between, as if the ocean hadn't yet decided what it wanted to be in this part of the world. Eva Colfax hung motionless in that murky clarity, regulator clenched in her teeth, staring at the thing she'd given up a university department for, moved out of a faculty apartment for, and borrowed money from three different people for — sums she had no intention of naming out loud to any of them.

Twenty meters below her, a rib of timber jutted from the sand — a blackened frame too regular to be a rock, too large to be anything but what it was. The Santa Clara de Oro. A Spanish galleon that left Panama in 1721 with a cargo of Incan gold and never reached Cadiz, not that year and not any year after.

Eva signaled with her hand — two fingers down, then a closed fist — and her dive partner, a burly man with a rust-colored beard, nodded through his mask and started his descent alongside her. His name was Owen Bryce, and until yesterday she'd known him strictly by reputation: the best submersible pilot on three continents, fired from two jobs for being right too often when his superiors needed him to be wrong.

"Seeing what I'm seeing?" she asked, and her voice through the dive comm sounded closer than it had any right to.

"I'm seeing ballast," Owen answered. "And I'm seeing ballast that shouldn't shine like that."

He was right. Between the deck planks, three centuries of shipworm and time eaten through, lay what under normal circumstances could be mistaken for gravel. The circumstances weren't normal. Eva swam closer, swept a meter of silt aside with her palm — and under her glove, metal caught the light, metal that doesn't tarnish in seawater, doesn't rust, doesn't turn to dust. Gold behaves like gold even after three hundred years on the bottom.

On the surface, where the sun hammered the deck of the converted trawler Kestrel hard enough to make the metal hiss, six people had already gathered around the chart table without waiting for a formal report — the speed with which Eva and Owen surfaced and tore off their masks made it clear there would only be one kind of report.

"It's down there," Eva said, still catching her breath. "Everything the log described. Everything we came for."

A particular kind of silence fell over the table — the kind that happens when six different people realize, all at once, that their lives are about to change, and each of them quietly decides for themselves whether that's a good thing.

Captain Rafael Delgado — the only one among them who actually owned the ship, and the only one with real reasons to doubt the legality of everything happening — was the first to break it, though quietly.

"Then we've got about two weeks," he said, "before someone else finds out the same thing."

He didn't say where the number came from. No one asked. Over the eight months it had taken to scrape together funding, permits, and — no use denying it — ways around the permits that couldn't be gotten, Rafael had never once been wrong about a prediction like that, and it inspired both confidence and a faint unease in equal measure.

The crew Eva had assembled for this expedition wasn't random, though from the outside it might have looked that way. Leyla Farouk, a small woman with a bomb disposal technician's hands and a sniper's patience, handled demolitions — part of the galleon's hold had collapsed during the wreck itself, and without controlled charges there was no getting inside. Morten Svensson, a Swede who looked like a polar explorer and checked the chart more often than the situation strictly required, was the geologist and navigator — his calculations of three centuries of currents and seabed drift had brought them to this exact patch of ocean, where the official Spanish admiralty charts diverged from reality by a good two miles. And Saskia Kowalski, the expedition's financier, a woman with a perfectly level voice and a gift for turning any sum of money into a plan for moving it, legally or nearly so, through half a dozen jurisdictions.

"Before we crack open the champagne," Saskia said, not looking up from her tablet, "I want to remind everyone that we don't have a single document explaining to any of the three governments whose waters we're currently using what exactly we're doing here."

"We have an archaeological survey permit," Morten pointed out.

"We have an archaeological survey permit issued by a government whose jurisdiction over this stretch of sea is disputed by two other governments," Saskia corrected. "That is not the same thing as legality."

Eva wiped her face with a towel and looked at the chart spread across the table, at the point where three dotted lines — marking the territorial claims of Valmara, the Kingdom of Tarif, and the youngest of the archipelago's coastal states, Esperanza-Norte — converged in a single spot, as if drawn on purpose to intersect right here. None of the three countries recognized the other two's claims. Which meant, formally, no one had jurisdiction here at all — and simultaneously meant any of the three could decide at any moment that they did, and that it was theirs alone.

"So we work fast," she said. "We bring up everything we can, get it out of contested waters, and let the lawyers argue over who owned what three hundred years ago. By then the gold won't be in the sea anymore."

Rafael was quiet for a long moment, then nodded — slowly, like a man agreeing not because the plan was perfect, but because there wasn't another one.

They began lowering equipment at sunset, when the sun turned the water the same color as the hull below it — dark gold on dark gold. Leyla checked her charges by headlamp light, muttering numbers to herself that meant nothing to anyone else. Owen prepped the small submersible, stripped from a decommissioned research vessel and refitted onto the Kestrel with an ingenuity bordering on witchcraft. Morten laid out current charts for the next two weeks, marking in red the days when visibility at depth promised to be worst — and therefore safest for staying out of sight of any passing ship.

Saskia worked apart from the others, at her own terminal, her face lit only by the screen, talking mostly to herself — to columns of numbers that weren't adding up as cleanly as she'd like the crew to believe.

Eva stood alone at the Kestrel's bow when Rafael came up and stood beside her, looking where she was looking — into the darkness beneath which lay a fortune capable of changing the life of every one of the six people on this ship.

"Ever think," he asked, "about what happens to people once the gold's actually in their hands?"

"I'm an archaeologist, Rafael. I think about what happens to people who've already been dead three hundred years. The living are harder to think about."

He smiled, but there was no humor in it.

"Then I'd start now. Because in two weeks we'll have both — the dead under the keel and the living on deck. And the second kind usually causes more trouble."

She didn't answer. Somewhere far off on the horizon, where the sea's darkness met the sky's, a single light flickered — too bright and too steady for a fishing boat. Eva watched it longer than she should have before telling herself it probably didn't mean anything, and went below to prepare for the first real dive into the Santa Clara's treasure hold.

She was wrong. It meant almost everything.

Below, in the cramped mess converted into a command room, Morten was unrolling his third chart of the evening, marking lines he didn't like in an especially dark shade of red. His method was simple and stubborn: wherever the official eighteenth-century Spanish charts diverged from modern satellite depth surveys by more than half a mile, he assumed not a cartographer's error but deliberate misdirection — a way captains of the era protected valuable routes from prying eyes. The Santa Clara had gone down in exactly one of those zones of intentional confusion, and Morten liked to think that somewhere in the Seville archives sat a document that would explain it better than any of his calculations. Until such a document turned up, the numbers would have to do.

"If our math's right," he said aloud, to no one in particular, "the nearest safe approach for a large vessel from here is a good six miles out. Anything closer than six miles sees us from the bridge with the naked eye in clear weather."

"Then let's hope for fog," Owen said without looking up from the submersible engine he had disassembled across his lap, piece by piece, like a surgeon laying out instruments before an operation.

"Or hope no one's looking for us specifically," Morten said, though without much conviction in his own words.

Eva half-listened to the conversation on her way below, thinking that in her old, university life an expedition had been built around grants, publications, and cautious promises to museum curators. Here everything was built around six miles of visibility and one light on the horizon that probably meant nothing. She told herself that again, settling into her narrow bunk under the deck, and still didn't quite believe it.