The epic conclusion to the fantasy adventure that started with Zo and the Forest of Secrets. After the mysterious Council tried to wipe Zo's memory, she's been hiding her powers from them. With her friend Adri gone, she must set out to find the truth... and save who she can along the way. On a mind-bending journey that leads her to old friends and new foes, Z finds herself at a secret school for children with powers just like her. Does the Invisible Island hold the answers she needs?