Dawn Drummond-Clayton and Bunduki were the adoptive great-granddaughter and adopted son of Lord Greystoke—better known as the legendary Tarzan of the Apes. Tarzan had taught Bunduki all his skills, and he and Dawn found they needed them all when, transported by the mysterious 'Suppliers' to the primitive planet of Zillikian, they had to defend themselves against wild animals and even fiercer human enemies.When Dawn was carried off by the servants of the Mun-Gatahs' High Priest and promised as a sacrifice to the Quagga God, doubted if even he, fearless master of the jungle, could save her from such a fate. And could he also prevent the curse of the 'Thunder Powder' from descending upon the planet of Zillikian?