 The story begins 1 year after the end of the previous novel (#9, Tarzan and the Golden Lion) which would place it around 1936 which would make Tarzan around 47 years old.His son Korak, now at about 23 has a verbal child, the grandchild of Tarzan.Tarzan, the king of the jungle, enters an isolated country called Minuni, inhabited by a people four times smaller than himself, the Minunians, who live in magnificent city-states which frequently wage war against each other.