An out-of-this-world friendship adventure by Captain Underpants & Dog Man creator Dav Pilkey, with full-colour art and mini comics by Caldecott Medalist Dan Santat. Ricky Ricotta and his Mighty Robot face off against a flock of flightless foes! Ricky and his Mighty Robot have made a mess. They've been mean to Cousin Lucy, and now they must make it up to her. But their surprise present for Lucy turns into a trap when President Penguin from Pluto plots to take over Earth. President Penguin is peev ...