TARZAN THE TERRIBLE continues the adventure begun in TARZAN THE UNTAMED — in that volume, the Lord of the Jungle discovered the burnt corpse of his wife, Jane, after a visit to his African home by German soldiers. (One suspects that Burroughs never did like Jane; this sort of thing happened to her a lot.) In this volume, Tarzan learns that Jane was not murdered by the Germans but kidnaped— and sets off in pursuit. As the novel begins, Tarzan has spent two months tracking his mate to Pal-ul-don ("Land of Men"), a hidden valley in Zaire, where he finds a land of dinosaurs and men even stranger— humanoids with tails. Ta-den is a hairless, white-skinned, Ho-don warrior; O-mat is a hairy, black skinned, Waz-don, chief of the tribe of Kor-ul-ja. In this new world Tarzan becomes a captive— but he impresses his captors so well that they name him Tarzan-Jad-Guru ("Tarzan the Terrible"). Meanwhile, a second visitor has come to Pal-ul-don— wearing only a loin cloth and carrying an Enfield rifle along and a long knife. Pal-ul-don is where Jane is being held captive, of course. . . .