Tarzan faces his most harrowing adventure yet when his treehouse is targeted and destroyed by slavers, who kidnap Jane and Boy No less dangerous are the hunters who threaten the family's new home amongst the pygmies of Opar This volume also sees Tarzan battle lion-sized wasps, outwit ivory poachers, brave giant spiders to find desperately needed medicine, become stranded in the Valley of Monsters, and even track a murder cult for the British government...