This special Collectors' Edition of the second book in the Captain Underpants features a lenticular paper-over-board cover and a top-secret bound-in component for just $9.99.

When Dav Pilkey began drawing pictures of an underwear-clad, wedgie-giving superhero as a second grader, his teacher said, "You'd better start taking life more seriously, because you can't spend the rest of your days making silly books!" Luckily for us, Dav didn't listen, and Captain Underpants was born. Now, kids everywhere can enjoy this special edition of the second book in the series--with an awesome lenticular cover and a super-cool value-added component that's so amazing, so fun, and so top-secret that you'll just have to buy it to find out!