The Beasts of Tarzan, the third book in the Tarzan series, was first published in All-Story Cavalier magazine in 1914. It was later published as a novel in 1916.
Tarzan s old enemy, Nikolas Rokoff, escapes prison and plans his revenge by kidnapping the Tarzan s son, the heir of Greystoke. He also captures Tarzan and Jane, and takes them all back to Africa, where he strands the Ape-man on an island before continuing on with his dastardly plan. On the island prison Tarzan befriends a troop of apes led by Akut and tames Sheeta the panther before escaping and setting off to rescue his wife and child.
