In the distant future, when fifteen-year-old Wren Natsworthy, bored with life in Anchorage, steals an Old-Tech book for a Lost Boy, she sets off a sequence of events that leads her parents, Tom and Hester, back into battle with old enemies and new.
- | Author: Philip Reeve
- | Publisher: Scholastic Press
- | Publication Date: May 30, 2017
- | Number of Pages: 352 pages
- | Language: English
- | Binding: Paperback
- | ISBN-10: 133820114X
- | ISBN-13: 9781338201147