June 2006. For his new expedition, Philippe Kok, a Belgian herpetologist, will go to the natural reserve of Kaieteur that hosts one of the highest waterfalls in the world. This batrachians and reptiles’ specialist knows the region well : each year, he discovers new endemic species. He is accompanied by his Amerindian assistant Paul and by Kinky a diamond seeker. Over the years, the two men became more than companions to Philippe : they became true friends. During this expedition in the very heart of Guyana’s tropical forests, this is the portrait of this singular friendship.