Ages 9-12 | Grade Levels 4-8 | Choose from 15 Possible Endings Written in the second-person, the reader is the hero of the story who makes decisions along the way. You are a young Orcan living on Planet Orca, where curiosity and exploration are punishable by exile. You are fascinated by your planet’s secret off-limits Lost Region. When you’re caught by the Elders they send you to a planet where curiosity is part of life: Earth. Choose Your Own Adventure is the 4th bestselling children's book series of all time. Empowering generations of children through choice, it is widely commended for its appeal to reluctant readers.