AUDIO BOOK: Mortimer: Rat Race to Space

Mortimer, a journal-keeping lab rat on the International Space Station, sets out to collect scientific evidence to prove his species should be the one to colonize Mars. When things go awry, he is forced to face new truths about dreams, friendships, and choosing the right thing to do.

Available as a digital download anywhere audio books are available including Audible and Audiobooks.com.

Narrated by Grant Wiens, Voicemaker

Published by Tantor Media

ISBN-13: 9798765089224

Read an excerpt.

Watch the book trailer.

Watch Joan’s author talk on Mortimer.

Download the Teacher’s Guide.


“An absolutely charming adventure. Fans of The Secret of NIMH will love this!” 

― Robert J. Sawyer, Hugo award-winning author of Far-Seer

“Mortimer’s adventures provide an exciting and funny story for readers to follow along. With a narrator like Mortimer, readers are never bored and are always laughing at his jokes and pranks. Galat has written a story with an extremely loveable nar-rat-tor, a character readers will remember for a long time to come.” Highly Recommended.

― Deanna Feuer ― CM Magazine

“It’s a beautiful combination of storytelling and non-fiction. Joan Marie Galat seamlessly integrates so much fascinating information about astronauts and the ISS while telling an engaging story about a determined little lab rat.”

― Storytime with Stephanie via Instagram

“A fun, fast-paced adventure, perfect for kids who love animals or outer space.”

― L.E. Carmichael, author of The Boreal Forest: A Year in the World’s Largest Biome

“Details about the space station come alive as the story unfolds. A fun read and the 27 chapters move along at a quick pace. A perfect addition to the middle grade shelves.”

― Greg Pattridge ― Always in the Middle…

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JOAN MARIE GALAT