Download or read book The Invisible Planet written by Geronimo Stilton and published by Scholastic Paperbacks. This book was released on 2018-01-04 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geronimo discovers a planet on the radar that mysteriously appears and disappears. The crew of "MouseStar 1" investigates and finds mysterious aliens who hide a secret! 5 5/16 x 7 5/8.