Ages 9-12 | Grade Levels 4-8 | Choose from 16 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 detective in London, England. The solstice is approaching and you follow a tip to Stonehenge in search of the missing heelstone. Is this mysterious contact tied to a dangerous vision of the future? Will you be tricked by the fairies? Can you entice the magical tree sprite and outwit the scary giant? 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.