A third book in the series following Oliver Strange's journeys into the most wild and intriguing places on earth! In the Amazon jungle of Colombia Ollie has to face not only the threat of anacondas and jaguars and the most poisonous frog on earth, but the dark world of drug dealers and finally a challenge that tests his nerve to the utmost. In an Embera village Ollie and Zinzi meet a strange boy who can speak English. Then guerrilla fighters come in search of the boy, whom they believe has a hidden treasure of ancient Embera gold. The boy, Fabio, convinces Ollie and Zinzi to help him protect the gold, as well as rid the jungle of the guerilla fighters, who are part of a coca farming gang.