<DIV><DIV>In the endless war between East and West, oil has become the ultimate prize. Nuclear-powered subtugs brave enemy waters to tap into hidden oil reserves beneath the East&#8217;s continental shelf. But the last twenty missions have never returned. Have sleeper agents infiltrated the elite submarine service, or are the crews simply cracking under the pressure?<BR><BR>Psychologist John Ramsay has gone undercover aboard a Hell Diver subtug. His mission is to covertly observe the remainder of the four-man crew&#151;and find the traitor among them. Sabotage and suspicion soon plague the mission, as Ramsay discovers that the stress of fighting a war a mile and a half under the ocean exposes every weakness in a man. Hunted relentlessly by the enemy, the four men find themselves isolated in a claustrophobic undersea prison, struggling for survival against the elements . . . and themselves.<BR><BR>A gripping novel by the legendary author of <I>Dune</I>.</DIV></DIV>