His true identity is so secret, even HE doesn't know who he is! Acclaimed author and Caldecott Honor illustrator Dav Pilkey provides young readers with the adventure of a lifetime in this outrageously funny, action-packed, easy-to-read chapter book. With hilarious pictures on every page, THE ADVENTURES OF CAPTAIN UNDERPANTS is great for both beginning and chapter-book readers. And like Dav's other best-selling books of humor, it is sure to provide even the most reluctant readers with hours of fun.