Orbit/Futura, London, 1984.  ISBN 0-7088-8129-7.  MMPB, 281+ pages.  Wraps have light edge and a bit of cover wear, small corner bends, reading creases on spine and along front spine edge, lower rear corner crease, some scrapes on spine.  Binding sound with a very slight lean.  Interior clean and unmarked with tanning pages.  ‘To escape extermination by their heavyworld colleagues, Kai, Varian and their companions sought refuge in the suspended animation of cryogenic sleep.  Now time has elapsed – how much is hard to tell, but at least two generations – and THE SURVIVORS emerge from their hibernation.  Ireta, the Dinosaur Planet, is much changed.  The heavyworlders have regressed to primitive barbarity.  Much necessary life-support equipment has malfunctioned or disappeared.  The very face of Ireta has altered.  But help is at hand – a rescue ship is on its way.  Even as hope begins to spring, however, new problems arise.  What are the motives of the mysterious Thecks?  Why are the intelligent Giffs – pterodactyls locked in an evolutionary blind alley – acting so strangely?  Above all, what possibly could be the cause of the mindless hostility of the heavyworlders?’ (from rear wrap)