The Valley of Despair

Lost in a savage Jungle...

Having survived a terrific plane crash, Erik von Mendelsohn is forced with enduring the terrors of a primitive world. Lost in the fastness of an African jungle where he struggles against great odds just to stay alive, he has no idea where lay the lines of friendly forces he was trying to reach before flying off course after his compass malfunctioned.

Soon, however, Erik discovers there to be forces at work infinitely more dangerous than the savage jungle with which he has contended since abandoning his wrecked plane when he discovers a mysterious, prehistoric city governed by the time-warp of a distant star – a star whose grim, gray inhabitants from another world make of him a thrall.

Forced into servitude for his new masters, instructed in their tongue by a beautiful slave girl, the handsome German pilot begins plotting their escape...

This is a short story in the Weird Tales tradition.