An pulse-pounding, underwater adventure from the bestsellingauthor of Darwin's Dragons!'Real science is used to create mind-blowing magic, in anunderwater world that will take your breath away –and give you gills instead.' LAUREN JAMES'A simultaneously magical and visceral experiencewhich kept me gripped until the last page.' DAVIDOWEN'A unique, thrilling read with twists that will keep you grippeduntil the very last page.' SARAH J. HARRIS'Galvin is a thrilling storyteller, untangling a dense plotin brief, suspenseful chapters, her prose almost trance-like' TELEGRAPHWhen Aster wakes alone on a tropical island, she has no idea whathas happened, why she is there, or where to find her youngersister, Poppy.Meanwhile Sam, who once met the sisters on a plane, makes linksbetween the mystery of their disappearance and suspicious happeningsin his own life.In a stunning dual narrative, the truth unravels with devastatingeffect – and the answer lies in the secret underwater worldsurrounding the desert island, populated by the beautiful andthe impossible ... An excitingly original thriller for young teens by LindsayGalvin, bestselling author of Darwin's Dragons.Pulse-pounding and mysterious, with the action splitbetween the wilds of New Zealand and a remote tropicalisland.Fantastic plotting is enhanced by gorgeous, visual writing,vividly conjuring a tropical underwater world.Themes of bereavement, ecology, science and family.