Meet Captain Underpants, a superhero with a true identity that is SO secret, even HE doesn't know who he is! Now with a full-color bonus chapter! George and Harold have created the greatest superhero in the history of their elementary school -- and now they've accidentally brought him to life! Read the first book in this bestselling series about two creative kids and the zany misadventures that follow when Captain Underpants leaps off the page to save the day! Acclaimed author and Caldecott Honor artist Dav Pilkey takes readers on a wild ride in this outrageously funny, action-packed, easy-to-read chapter book. With illustrations on every page, it's great for both beginning and chapter-book readers, and sure to turn even the most reluctant of readers into lifelong fans. This updated ebook edition now includes a bonus chapter in full-color that reveals the true origins of Captain Underpants!