Samsudin snatches a diary and a map from two killers in the Botanical Gardens of Bogor. He leaves the diary, which holds clues to a hidden treasure of pearls, with his friend. But the killers come for the diary and Samsudin. They take Samsudin with them across the sea to a strange and mysterious island in search of the treasure. Surprises and danger await them in the person of an old enemy who was thought dead. Read of Samsudin's fearful adventure and his growing friendship with the one-armed pearl-driver. Yopi in Kidnapped in the Jungel.