The Last of the Sky Pirates: The Edge Chronicles, Book 7

Rook Barkwater dreams of becoming a librarian knight - sent out to explore the mysteries of the Edgeworld. So when his chance comes, he grabs it.

Breaking all the rules, he sets out on a journey to the Free Glades and beyond. His luck and determination lead him deep into the heart of the Deepwoods, where Rook encounters a mysterious character - the last sky pirate - and is thrust into a bold adventure that dares to challenge the might of the dread Guardians of the Night.