In Guatemala, a land of ancient civilizations and treacherous jungles, a young adventurer searches for his long-lost sister . . .

Beck finally has the information needed to help him track down his long-lost sister, Dian, but his survival skills will be tested to the extreme as he attempts to find her home in a remote corner of the Guatemalan jungle.

With the help of his friend James, Beck must navigate underwater caves, sheer falls, and jaguars lurking in the darkness . . . But does Dian even want to be found?

This is a thrilling novel of adventure by the "intrepid, insatiable explorer" famous for the TV show Running Wild with Bear Grylls (Kirkus Reviews).