The story begins 10 years after the conclusion of "The Beasts of Tarzan". During the past decade, Alexis Paulvitch, who had escaped Tarzan at the end of the last novel, has lived a hideous life of abuse and disease among tribal people in Africa. Now he is discovered by a European ship and taken aboard. In the months that follows, Paulvitch encounters the ape, Akut, (whom Tarzan had befriended in that previous story) at one of the ship's stops. Because of Akut's interactions with Tarzan, he is unafraid of white men, and Paulvitch, unaware of the previous relationship, sees an opportunity to make some money. He takes Akut to London and begins displaying him publicly.