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by Joan Marie Galat

Price: $13.95

Ages: 9 to 12

Publication Date: September 24, 2022

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ISBN: 9781770866539

Format: Trade Paperback

Size: 5.375" x 8"


JUV053020 JUVENILE FICTION / Science Fiction / Space Exploration

JUV002180 JUVENILE FICTION / Animals / Mice, Hamsters, Guinea Pigs, etc.

JUV036010 JUVENILE FICTION / Technology / Astronauts & Space


A spot on the International Space Station (ISS) has opened up, and Mortimer, is not about to miss his chance to become an intergalactic space rat. And that’s just the first step in his master plan to prove that rats are much better suited than humans for a future mission to Mars. He packs his camera and prepares to take to the internet with his evidence of rat superiority 


But when Mortimer’s schemes go awry, he is forced to face new truths about dreams, friendship, and choosing the right thing to do. Maybe not everything is a rat race.


Shortlisted, 2024 Red Cedar Award (BC Young Readers’ Choice)


“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 story is a ridiculous tale filled with rat puns, pranks, and a whole lot of fun. Readers who have a love of space will find well-researched facts spread throughout the story in a way that is informative but not overwhelming. It’s clear that Galat has a love for space and science, and she shares that love with her readers through Mortimer’s adventures.”

— CM: Canadian Review of Materials

“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

“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…

“There are several things I loved about Mortimer: Rat Race to Space. First, the eye-popping facts that Joan manages to weave seamlessly into the story. Kids who are following Mortimer’s escapades will learn about space – and rats! – without even noticing.”
— L.E. Carmichael, author of The Boreal Forest: A Year in the World's Largest Land Biome

“This book definitely is full of fiction from the talking rats to having Mortimer use YouTube! The author made it fun to read and it's easy to follow along with the story.”

— Jack H., Age 7, Central Florida Mensa

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