SC – The Horn Book
Oppel's books are equally notable for their action-packed plots and superb characterization, a combination that is not always easy to find in the fantasy/science fiction genre. Matt Cruse and Kate de Vries are back for their third adventure...and, not surprisingly, their relationship is pushed to the limits right along with their adrenaline.... True to form, Matt and Kate rise to the challenges, emerging victorious in life and in love.
– The Horn Book