With more than 38 million copies in print, Dav Pilkey's Captain Underpants books are among the bestselling children's series of all time! Now readers of all ages can enjoy a deluxe boxed collection of Books 5-8, featuring the tighty-whitey-wearing superhero who fights for Truth, Justice, and all that is Pre-Shrunk and Cottony! This set is encased in a book-shaped box with a groovy glow-in-the-dark cover and a super-cool, exclusive inflatable Captain Underpants figure!