Conventions. No part of this publication may be reproduced, trans-

mitted, downloaded, decompiled, reverse engineered, or stored in

or introduced into any information storage and retrieval system, in

any form or by any means, whether electronic or mechanical, now

known or hereafter invented, without the express written permission

of the publisher. For information regarding permission, please contact

Atlantyca S.p.A., Via Leopardi 8, 20123 Milan, Italy; e-mail foreign-

e-ISBN 978-0-545-52049-2

Milan, Italy.

International Rights © Atlantyca S.p.A.

GERONIMO STILTON names, characters, and related indicia are

reserved. The moral right of the author has been asserted.

Based on an original idea by Elisabetta Dami.

Published by Scholastic Inc., 557 Broadway, New York, NY 10012.

SCHOLASTIC and associated logos are trademarks and/or registered

trademarks of Scholastic Inc.

Stilton is the name of a famous En glish cheese. It is a registered trade-

mark of the Stilton Cheese Makers’ Association. For more information,

go to www.stiltoncheese.com.

Text by Geronimo Stilton

Original title S.O.S. C’e un topo nello spazio!

Cover by Giuseppe Ferrario (design) and Giulia Zaffaroni (color)

Illustrations by Francesco Barbieri (design) and Christian Aliprandi

(color)

Graphics by Chiara Cebraro

Special thanks to Kathryn Cristaldi

Translated by Lidia Morson Tramontozzi

Interior design by Kay Petronio

First printing, January 2013