Rex Rocket: Cosmic Wiener Dog: (A Graphic Novel)

Introducing a hysterical brand-new graphic novel series from the bestselling creator of Max Meow! Meet Rex Rocket, a super stretchy wiener dog who boldly ventures to a mysterious new planet with his pals to stop an angry monster. Little do they know, Rex's boss is hoping that they'll fail!

"You'll laugh yourself through the woof--I mean, ROOF--and straight into orbit!"--John Patrick Green, bestselling creator of InvestiGators

Rex Rocket isn't very strong...or organized...or smart. But sometimes, all you need to save the galaxy is to be an infinitely stretchy, baby blue wiener dog!

When the crotchety Commander Dill sends Rex and his crew on a critical mission to the planet Gratuvius 4, Rex thinks it's the perfect chance to impress his boss. Little does he know that Dill is planning for Rex to fail! And no knows just how chaotic things on Gratuvius are about to get!

Why is there a giant monster running around trying to eat the planet's king? Why does everyone on the planet seem so happy to be working all the time? Why can't Rex accept that the mysteriously helpful voice on the S.S. Sagan isn't just inside his head?!

Get ready to blast off, recruit! Rex needs you to solve all these mysteries (and many more!) in the start to John Gallagher's hilarious and epic new series. HOT DOG!

Author: John Gallagher
Publisher: Random House Graphic
Published: 08/04/2026
Pages: 224
Binding Type: Hardcover
Series: Rex Rocket
Weight: 1.10lbs
Size: 8.40h x 5.80w x 0.70d
ISBN: 9780593712306
Audience: Ages 4-8


Review Citation(s):
Kirkus Reviews 05/15/2026
Publishers Weekly 05/25/2026
School Library Journal 07/01/2026 pg. 81

About the Author
John Gallagher is an art teacher, art director, co-founder of "Kids Love Comics" (an organization that uses graphic novels to promote literacy), and leads workshops teaching kids how to create their own comics. John lives in Virginia with his family, including a cat, Millie, and dog, Cody (who appears in the Max Meow books).