Professor Greenfur, the onboard scientist on spaceship MouseStar 1, has changed color from green to... orange! What's going on? To find out, the spacemice travel to his home planet of Photosyntheson. There, they learn that all of Professor Greenfur's relatives are being threatened by the nibblix, tiny aliens with very sharp teeth! Can the spacemice help in time?
Series
89 primary books203 released booksGeronimo Stilton is a 203-book series with 81 primary works first released in 1883 with contributions by Geronimo Stilton, Elisabetta Dami, and Kathryn Cristaldi.
Featured Series
12 primary booksGeronimo Stilton: Spacemice is a 12-book series with 12 primary works first released in 2013 with contributions by Geronimo Stilton and Elisabetta Dami.
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