4th Bestselling Children's Book Series of all Time --The New Yorker When the Head of Camp at Princess Island is nowhere to be found and a new camper needs your help, what will you do first? Meanwhile, can you save your fellow princesses from a menacing ghost? Will you make a new friend or discover a bevy of magical creatures, from unicorns to mermaids to talking fish? Unicorn Princess by Shannon Gilligan takes YOU--the plucky Princess Perri, now ten years old--on a third summer of adventure at camp on Princess Island! Your 6-8 year old reader will show off her new, lucky compass and improved curtsy-skills. Choose Your Own Adventure Unicorn Princess is an interactive gamebook in which YOU decide what happens next. Choose Your Own Adventure is the bestselling gamebook series of all time. Empowering generations of children through choice, it is widely commended for its appeal to reluctant readers.