Book I of Dinosaur Planet. On Earth they had died out 70 million years ago, but on Ireta the dinosaurs ruled in all their bizarre splendour.  The expedition sent to explore this seemingly bland planet was trapped within its energy as quickly and mysteriously as their relief ship vanished.  And half the expedition’s personnel reverted to type and as predatory carnivores systematically hunted down their colleagues.  Only the frozen sleep of cryogenics offered an escape.   But for how long?