At two in the morning, my husband opened the refrigerator and stared at the empty shelf where I had left his dinner for eight years

The fog hung low and suffocating over the black water of Marina Bay as the clock struck five in the morning. The salty tang of the Atlantic mingled with the pungent odor of diesel exhaust. In the distance, the yellow warning lights of a massive industrial barge blinked rhythmically through the gloom.

Ethan and I walked along the damp wooden planks of Pier 12, our flashlights cutting through the heavy mist. Below us, the tide churned violently against the century-old granite pilings. Maya remained stationed in a communications van fifty yards up the embankment, maintaining the satellite feed to the European press.

"The inspection hatch should be right beneath the eastern mooring bollard," I said, pointing the beam toward a heavy iron trapdoor half-covered by barnacles and sea salt.

Ethan knelt down, wedging a heavy steel crowbar beneath the rusted iron lip. With a grunt of exertion, his muscles straining through his dark jacket, he pried the hatch loose. A blast of cold, stagnant subterranean air rushed up to greet us.

"Careful," Ethan warned, descending first down the slick iron rungs into the darkness. "The lower chamber is partially submerged at high tide."

I followed immediately, stepping onto a narrow stone ledge built into the foundation wall. There, embedded directly into the central granite pillar behind an oxidized copper seal, was a sealed vault box emblazoned with the Vance architectural crest: an open compass encircling an anchor.

"It's here," I breathed, my fingers tracing the cold metal. "He really hid it in the heart of the foundation."

Suddenly, the roar of a high-powered outboard motor shattered the dawn silence.

"Ava, get down!" Ethan yelled, grabbing my arm and pulling me back beneath the stone archway just as a heavy spotlight swept over the hatch above.

Heavy boots thudded onto the wooden pier planks. Shadows formed along the opening. Through the hatch, we heard the unmistakable metallic click of weapons being chambered.

"Miss Vance!" Henri Laurent’s voice echoed down into the chamber, stripped of all diplomatic pretension. "Marcus Valmont sends his regards. There will be no press conference. There will be no sovereign trust hearing. You will disappear beneath the incoming tide, alongside your father's worthless scrap metal."

A heavy tear-gas canister dropped through the hatch, hissing violently as noxious white smoke erupted into the confined cavern.

I choked, coughing violently as the stinging fumes filled my lungs. Ethan acted in an instant. Tearing off his woolen scarf, he soaked it in the seawater at our feet and pressed it against my mouth and nose.

"Climb up the western maintenance shaft!" Ethan coughed, pushing me toward a narrow emergency ladder hidden in the back shadow of the pillar. "Now, Ava! Go!"

"I'm not leaving you!" I shouted through the smoke.

"Go! I'll hold the ladder!"

Two armed men dropped down through the main hatch, flashlights fixed on us. Ethan didn't hesitate. With a ferocious roar, he tackled the lead operative into the churning tide below the ledge, knocking the flashlight and weapon into the black water. The second man raised a tactical baton, swinging it brutally toward Ethan's head.

"Ethan!" I screamed, lunging forward with the heavy steel crowbar and striking the second assailant across the shoulder, knocking him off balance.

Ethan surged back onto the ledge, his face bruised and bleeding from the impact, and shoved the man hard against the stone pillar, disarming him in a single fluid motion.

Above us, sirens wailed. Eleanor Hayes had unleashed the maritime patrol. Gunboats sliced through the fog, blinding floodlights washing over Pier 12.

"Federal marshals! Drop your weapons!" a voice boomed through megaphones from the water.

Laurent's men scrambled, but Ethan had already pinned the remaining operative to the wet stone. Ethan looked up at me through the clearing smoke, blood trickling from his temple, his chest heaving with exhaustion.

"Did you get the box?" he rasped.

I looked down at my hands. Clutched tightly against my ribs was the copper-encased ledger my father had left behind.