The Lavalite World: Philip Jose Farmer

The Lavalite World is a world of slow and constant change. The very landscape moves. Here, mountains rise from plains or sink into seas. New oceans form as vast hollows collapse and seas rush in. There is only one escape from this bizarre planet: a single gateway to other universes which is in the palace of Lord Urthona. Paul Janus Finnegan - also known as Kickaha - must reach it if he is going to survive. And he must do it despite the Lords Urthona and Red Orc, the hired thug McKay, flesh eating vegetation on the run, assorted strange beasts of prey AND planetary pseudopods. Cover art by Fred Gambino.