"A thrilling and original science-fiction mystery that will surprise readers at every turn" - School Library Connection "An emotional journey of strength and grief set on a stunning island backdrop." - Booklist "With this atmospheric debut, Galvin skillfully captures Aster's surroundings, bringing the islands and deep waters to life while employing a fast-paced plot balanced among adventure, mystery, science fiction elements, and Aster's emotional struggle." - Publishers Weekly "A thrilling and original science-fiction mystery that will surprise readers at every turn." - School Library Journal "Galvin is a thrilling storyteller, untangling a dense plot in brief, suspenseful chapters, her prose almost trance-like . an inventive and touching story, from a novice who writes like an old pro." -- Telegraph (UK) "This book turned out to be totally different than I expected and the author has taken a brave leap, mixing modern day sci-fi with myth, legends, mystery and adventure . an adrenaline packed story that will have you hooked with its likeable characters and villains." -- Readingzone (UK) "This underwater sci-fi adventure manages to bridge the gap, with its empathetic heroine and compelling mystery.

" -- Press Association (UK).