Despite Bushbaby's misgivings, the young castaways befriend the spider monkey that was stealing their food, especially after he promises to give them information about the hidden rulers of the island.

Includes index. Includes glossary. This graphic adventure will enthrall young readers as they search for clues within the story. Along the way they will pick up the math and problem-solving skills that the castaways demonstrate, including reasoning, measuring distances, speed, and length, predicting and probability, and concepts of time.