I have used this dictionary for over 25 years and have worn out my copy. It is well organized, easy to research, and has the answers.

Written in 1942 the story takes place in the "lost land" of Austrailia where overhead airplane flights are mysteriously pulled down by unknown forces. No one can penetrate the desert or the mountain pass that lead into the land. Heroin Ann Hunter is in search of her lost brother, with her is a man named Richard Varsey who is looking for diamonds and a German by the name of Hofer. Hofer wants the mysterious technology that he believes is there so that he can take over the world. "Is, is he a commie?" Ann asks about Hofer. The response was "Worse than that. He's an anarchist!"

There, in the "lost land", all three meet Jongor, who proceeds to save them continuously. Jongor (John Gordon) was born there, a product of parents who were in one of those overhead flights that crashed. His parents died later, after the crash, when he was at such a young age that he never learned to say his own name hence Jongor or find his way out.

In general, you have dinosaurs, flying reptiles, ape men, mysterious technology, adventure and a happy ending.

A Tarzan and Allan Quatermain imitation but much less laborious than Burroughs, much less thoughtful than Haggard. I recommend this as it is an entertaining and easy read.