Download or read book Ricky Ricotta's Mighty Robot Vs. the Unpleasant Penguins from Pluto written by Dav Pilkey and published by . This book was released on 2016-05-31 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infuriated by the declaration that Pluto is no longer a planet, President Penguin and his penguins invade Earth and it is up to Ricky and his robot pal to defeat them--with some help from Ricky's cousin Lucy and her pets.