In addition to the title story, a short novel, it includes two Tarzan short stories.
The three stories included in this novel are:
"Tarzan and the Castaways"
"Tarzan and the Champion"
"Tarzan and the Jungle Murders"
In the title story, Tarzan is stranded on a Pacific island inhabited by the remnant of a lost Mayan civilization. In the second he confronts an American prize fighter who has come to Africa to hunt the wildlife, while in the third he applies his jungle lore to solving a mystery.