"When river pirates attack their ferry in the middle of the night, Nick and his family escape on a surfboard. But the Amazon River's wild currents separate Nick and his stepsister from their parents. One minute, they were together, the next, Nick and Maddie are lost and alone in a deadly rainforest filled with piranha, jaguars, caimans, and giant anaconda. Worse, they've got angry pirates on their tail and a box of stolen gold. 15-year-old Nick is responsible for 8-year-old Maddie--but it's not easy when his stepsister acts like she hates his guts! Can they find a way to get along and survive in the deadly jungle? Can these brave but frightened kids escape disaster?"-- Provided by publisher.