THE NOAA SHIP Benjamin Franklin limped along like a sailor who'd been in a bar brawl. The tug-of-war with the whirlpool had taken its toll on the ship's engines, which had to be babied so they wouldn't break down completely. The Throckmorton trailed several hundred yards behind in case the NOAA vessel ran into trouble.

As the two ships slowly made their way toward Norfolk, a turquoise-colored utility helicopter with the letters NUMA visible on the fuselage appeared in the western sky. It hovered over the Benjamin Franklin like a hummingbird before touching down on the deck. Four people scrambled out, carrying medical supplies and equipment.

Crewmen directed the medical team to the ship's sick bay. None of the injuries sustained when the ship nearly went vertical in the whirlpool were life-threatening. The captain had requested the team to help the ship's paramedic, who had been overwhelmed with the sheer volume of bruises and concussions.

The helicopter was refueled, and two crewmen who had suffered broken arms were loaded aboard. Austin thanked the captain for his hospitality. Then he, along with the Trouts, Zavala and Professor Adler, climbed into the helicopter. Minutes later, they were airborne.

The helicopter touched down at National Airport less than two hours later. The injured were unloaded into waiting ambulances. The Trouts caught a taxi to their Georgetown town house, taking Adler with them as their guest, and Zavala drove Austin to his house on the Potomac River in Fairfax, Virginia, less than a mile from the Central Intelligence Agency headquarters in Langley. They all agreed to meet at eight the next morning after a good night's rest.

Austin lived in a converted Victorian boathouse overlooking the river. He had acquired the turreted building when he worked for the CIA. The mansard-roofed structure was part of an old estate, and the previous owners had let it run down. It had become a waterfront condominium for countless families of mice by the time Austin gutted and redid the interior and restored the exterior to its former glory. The space under the living quarters housed his racing scull and small, outboard hydroplane.

He dropped his bag in the hall and walked into a spacious living room. His house was an eclectic combination of the old and the new. The authentic, dark wooden, colonial furniture contrasted with the whitewashed walls hung with contemporary originals and painterly primitives and charts. Floor-to-ceiling bookcases held the leather-bound sea adventures of Conrad and Melville and the well-worn volumes of the great philosophers he liked to study. Glass cases displayed some of the rare dueling pistols he collected. His extensive collection of music, with a preference for progressive jazz, mirrored his steely coolness, his energy and drive, and his talent for improvisation.