Tarzan and the Graveyard of the Elephants

Upon discovering elephant skeletons without their tusks, Tarzan discovers that soldiers led by King Aga of Novard is behind this and his armies are looking for the Graveyard of the Elephants. Tarzan discovers that the Novardians worship the woolly mammoth Bentor (whom they consider a god) and want Tarzan to take them to the Graveyard of the Elephants in order to harvest the tusks there.