Moments later, the water had closed in on the ceiling. Juan reached overhead to open the outer hatch. A few stray bubbles burst free as it swung up. He climbed out of the sub, making sure to keep his head down and his lights pointed away from the surface. He felt reasonably confident that the Argentines didn’t have lookouts posted in such freezing conditions, but he hadn’t thought he and Linc would run into a guard last night either.

The low vibration in the water came from the cruiser’s secondary power plant, which produced enough energy to run the ship’s systems and keep the men warm. The main engines were off. He knew this already by observing that only a small amount of smoke escaped the warship’s single raked funnel.

He jumped free of the sub, floating down to the bottom in a graceful arc. His boots hit and kicked up a little silt that drifted gently away. One of the six-inch-thick conduits for the bubbler was to his left. Air rose from its length in thin streams of silver.

Juan turned his attention to the Admiral Brown’s anchor. It looked to be about eight feet long and would probably weigh in at about four tons—more than enough to keep the ship stationary against the tides. A small pile of extra chain lay next to it in a rust-colored heap.

“How are you doing out there?”

“No problem so far. I’m looking at the anchor now.”

“And?”

“I should be able to unshackle it from the chain. The lynchpin is held in place with bolts.”

Cabrillo bent over the anchor and pulled an adjustable wrench from his belt. He fitted it over the first bolt and used his thumb on the oversized adjusting wheel until it was snug. It fought him the entire way. Tiny bits of paint lifted from the bolt head when it first moved an eighth of a turn, and it would turn no more than that. Juan heaved on it until finally bracing his legs against the anchor and pulling until he though he was going to pass out. The bolt gave another eighth turn. It took ten backbreaking minutes to remove that first bolt, and Juan was bathed in sweat.

“Shut down the hot suit, Eddie. I’m dying out here.”

“It’s off.”

The next bolt spun out so easily that, once he had it started, he could twist it with his fingers. The third and fourth weren’t quite as easy, but nowhere near as bad as the first. He clipped the wrench back to his belt and grabbed a rubber mallet. He used rubber to avoid making any noise.