The fifth book by Paul Stewart is definitely great. That great book is The Last of the Sky Pirates. This novel follows the adventures of a young librarian knight named Rook. A librarian knight is a person who studies wildlife and logs whatever they find. When Rook goes on a quest with two other librarian knights. On their journey they face endless perils. That includes a delusional forest, primitive warriors and a colossal monster. Legions of warrior birds and goblins try to stop them, but inevitably fail. On his adventure Rook meets two sky pirates. One of which is the legendary Captain Twig. This book is 370 pages long, full of action, adventure, and breath taking creaures.