While searching for the missing link among the mammal life in planet Tartarus, Exobiologist Jules Rammis finds a lot more than what he was searching for among the great reptiles of this primal world. Deep beneath the surface, a spectacular culture of intelligent life forms quietly roams the sunken seas.

After walking into the lair of a demented member of the species, out to destroy humankind and intending to use Jules as his weapon, our protagonist finds himself in a battle against an enemy with staggering telepathic powers and the ability to destroy whole worlds, even Earth. Will he prevail, or succumb when pitted against these impossible odds?