Life on Tripus is peaceful for the Kantans - a race of amiable Tyrannosaurus Rex lookalikes - until their healer is found killed. A mystery, new "animal" is implicated. It seems a good idea for Jania to go and do the groundwork for a fact-finding expedition while her partner, Zoltan Zeffyr, is busy on Earth. However, nothing goes to plan and, in her second series of adventures, Jania encounters ferocious predators, a tribe of cave-dwellers and the cataclysmic forces of Nature before the truth is revealed. Meanwhile, tragedies on Earth shake Zeffyr's faith in human nature to the core.