The pilot nodded and Logan slid into the right-hand chair beside him. In front of him was a formidable array of instruments and video display screens. “Those are our 'eyes,' ” he said, pointing to a row of television monitors. “That's the bow view from the sail cam on the front of the sail.”

The captain studied the glowing control panel and after conferring with the pilot, he radioed the support ship and said the sub was ready to dive. He gave the order to submerge and level off at one hundred feet. The pump motors hummed as water was introduced into the ballast tanks. The rocking motion of the sub ceased as she sank below the waves. The sharp bow pictured on the monitors disappeared in a geyser of spray, then reappeared, looming dark against the blue water. The crew checked out the sub's systems while the captain tested the UQC, an underwater wireless telephone that connected the sub with the support ship. The voice from the ship had a drawling, metallic quality but the words were clear and distinct.

When the captain was assured all systems were go, he said, “Dive, dive!”

There was little sensation of movement. The monitor pictures went from blue to black water as the sunlight faded, and the captain ordered the exterior lights on. The descent was practically silent, the pilot using a joystick to operate the diving planes, the captain keeping a close eye on the deep-depth gauge. When the sub was fifty feet above the bottom, Logan ordered the pilot to hover.

The pilot turned to Pulaski. “We're in shouting distance of the site we picked up with remote sensing. We'll run a search using our side-scan sonar. We can program a search pattern into the computer. The sub will automatically run the course on its own while we sit back and relax. Saves wear and tear on the crew.”

“Incredible,” Pulaski said. “I'm surprised this remarkable boat won't analyze our findings, write a report and defend our conclusions against the criticism of jealous colleagues.”

“We're working on that,” Logan said, with a poker face. Pulaski shook his head in mock dismay. “I'd better find another line of work. At this rate, marine archaeologists will be doomed to extinction or to simply staring at television monitors.”

“Something else you can blame on the Cold War.”

Pulaski looked around in wonderment. “I never would have guessed that I'd be doing archaeological research in a sub designed to spy on the Soviet Union.”

“There's no way you could have known. This vessel was as hush-hush as it gets. The amazing part is that the ninety-million-dollar price tag was kept a secret. It was money well-spent in my opinion. Now that the navy has allowed her to be used for civilian purposes, we have an incredible tool for pure research.”

“I understand the sub was used in the Challenger space shuttle disaster,” Pulaski said.