Prof. Northam, his daughter, Alice, and his assistant, Prof. Barton, discover valuable, ancient artifacts in the Gwaha country. They set up fake appearances by the Gwahas' gods to frighten the natives away, making it easier to seize the artifacts. An hallucinogenic drug, intended by Barton to drive Northram mad so that Barton could claim the discoveries as his alone, is smeared inside a pith helmet that is worn successively by Northram, Ann, and Barton. In his confused state, Barton detonates a load of dynamite, killing him and Northram.; Treasure hunters, working to get illicit gold out of the jungle, run afoul of the Jawalas, who capture them and torture them to death. Camilla returns the gold to the Jawalas.; Nolan and Billings, disguised as lancers, take a group of native men as slaves. Terry, escorting a newspaper reporter into the interior, frees the slaves and, with their help, take Nolan and Billings prisoner.; While fleeing a lion cult, Simba becomes covered in phosphorescent mud. The cultists believe him to be a ghost and call off their hunt.; Wambi is captured a white woman hunter who wants to use his power to communicate with animals. That night, Sirdah the tiger prowls the camp and Wambi agrees to do anything Sirdah asks if he will free him. Sirdah does and Wambi makes his escape.; A pair of treasure hunters use mind control drugs on the jungle witch Serpina, in order for her to steal a sacred idol. Tabu discovers their plot and creates an illusion of the idol coming to life and threatening the hunters. They stumble backward into a crocodile pool.; Brief natural histories of several jungle animals.