When Tourmaline's mother goes missing on a search for precious artefacts, Tourmaline sets off to find her with her best friend George, her new friend (former foe) Mai and her limitless determination. On their adventure, they encounter a band of female pirates, a maze of talking trees and a series of challenges that test the children and their friendship. But will it be enough to reunite Tourmaline with her mother? The first book in a fun, feminist fantasy adventure series, with a protagonist that flies off the page and into readers' imaginations. Perfect for fans of Katherine Rundell, Vashti Hardy and Abi Elphinstone.