Captain William M. Corry of the American submarine U.S.S. Shenandoah must try to figure out why Americans stationed at the Pacific island port of Makasar are disappearing without a trace. Original.

The hunt was on—William M. Corry, captain of the American super-sub, the U.S.S. Shenandoah, was certain his new mission was not as simple as it first seemed. His initial orders were for a shakedown cruise, but those were quickly countermanded by another directive to proceed to the Solomon Islands. Yet Corry's gut feeling was that this was all a coverup for something far bigger. And he was about to be proved right! Told to rendezvous with and take on board a scientific team, Corry learned that the Shenandoah was at last going to be allowed to track down the alien invaders who were based beneath the sea—and this time they were going to bring one of the creatures back alive!

Carrying a powerful cargo that could result in the destruction of twenty-first-century humankind, William M. Corry, the captain of an American super-sub, is distraught by orders that send him into the heart of enemy territory. Original.