Rook Barkwater dreams of becoming a librarian knight. Breaking all the rules, he sets out on a perilous journey to the Free Glades and beyond. Then, buried in the heart of the Deepwoods, 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... A magnificently inventive and brilliantly illustrated tale filled with amazing characters and creatures — from bloodthirsty muglumps to banderbears, spindlebugs and shrykes.