The Beasts of Tarzan is a novel by American writer Edgar Rice Burroughs, the third in his series of twenty-four books about the title character Tarzan. Originally serialized in All-Story Cavalier magazine in 1914, the novel was first published in book form by A. C. McClurg in 1916. The story begins a year after the conclusion of the previous book, Tarzan (Lord Greystoke) and Jane have had a son, whom they have named Jack. Tarzan has spent much time building an estate home on the Waziri lands in Uziri, Africa, but has returned to his ancestral estate in London for the rainy season.