<div>From Dav Pilkey, creator of Captain Underpants, and acclaimed artist Dan Santat, a thrilling friendship adventure with all-new full-color illustrations and mini-comics throughout!<br><br>Ricky Ricotta loves his Mighty Robot. They do everything together, but it's sometimes hard for a small mouse to have such a big buddy! If only the Mighty Robot could find someone his own size to play with, Ricky might finally have some fun by himself.<br><br>Little does Ricky know, his wish is about to come true. Evil Uncle Unicorn has a top-secret plan to trap the Mighty Robot so that he can take over Earth, and he's got a giant surprise in store. Once again, it's up to Ricky to save the planet -- and his best friend!<br><br>Originally published in 2005, this edition features brand-new full-color illustrations and mini-comics throughout!</div>