At the Great Festival, Elsu woos the beautiful Kai and swears a rash vow to win Kai's hand. Now Elsu and his best friend sail to the forbidden sunken city of Angor Drava to steal the eyes from a statue. But a terrible and deadly evil awaits them in the dark water.
The direct descendent of a carnivorous dinosaur has returned to claim the Earth. Commander Pyg sets up her base in the ancient subterranean Ossiane Empire. Nothing can stop her exterminating the human race apart from an eccentric geologist, sceptical science master, and a few surviving Ossianes.
And none of them know about the comet on collision course with the Earth.