"Riveting. Oppel’s chillingly beautiful, detailed world is the perfect backdrop to the action-packed plot." —Kirkus Reviews
"Thrilling." —Booklist
"The appeal of fantasy, suspense, horror, and relationships will be too strong for readers to resist, and they will be avidly awaiting the final book in this series. An impressive addition to the outstanding trilogy. This belongs on all young sci-fi thriller shelves." —School Library Journal
"With peril around every corner and plenty of raw emotion, Oppel has crafted a compelling story about what makes a person a human being." —The Horn Book Magazine
