• "Gray weaves a complex and haunting story at the heart of which is a searching exploration of personal courage . . . An engrossing and unsettling fantasy"

    Lindsey Fraser, Glasgow Sunday Herald
  • "Gray's book is more than just an intelligent piece of writing, it's also an incredibly brave one, and one that should be applauded in every way"

    Anna Gibbons, The Bookseller
  • "This is a complex, interesting story about faith"

    Jan Mark, TES
  • "Darker than Harry Potter, and with a hint of Philip Pullman's Dark Materials, it's a beautifully written story"

    Scottish Standard