The Cave Girl Part 1

Blue-blooded mama's boy Waldo Emerson Smith-Jones is swept overboard during a South Seas voyage for his lifelong ill health. Washed ashore on an uncharted South Pacific island, desperately tries to survive. Attacked by a tribe of cliff dwellers and saved by a cave princess, Nadara.
His bookish education has not prepared him to cope with these surroundings, and he is a coward. She teaches him the language, how to swim, how to fish, and basic woodcraft, as he begins to realize that he does not know everything. Nadara warns him that a newcomer to her tribe must fight the strongest men, who have killed many. When they reach her home village, he is horrified to see that despite her appearance, her tribe seems to be cavemen from the Paleolithic era. In order to avoid death at the hands of the tribal bullies, he vanishes.
Can he survive the all the danger of this jungle island and what about Nadara? Is there any hope of ever leaving and being saved?