Medusa: Clive Cussler and Paul KemprecosNUMA Files 8. In the Micronesian Islands, a top secret, U. S. government sponsored undersea lab conducting vital biomedical research on a rare jellyfish known as the Blue Medusa suddenly disappears. At the same time, off Bermuda, a bathysphere is attacked by an underwater vehicle and left helpless a half mile below the surface, its passengersincluding Zavalaleft to die. Only Kurt Austins heroic measures save them from a watery grave, but, suspecting a