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Cat Ninja : Dog Days - Marcie Colleen

Cat Ninja

Dog Days

By: Marcie Colleen, Stephanie Cooke, Matthew Cody, Erana Bumbardatore, Nick Murphy

Hardcover | 29 September 2026

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In volume 7 of the hugely popular Cat Ninja graphic novel series, our hero sets off on a quest to save man's (and cat’s!) best robotic friend, Adonis, from the villainous creator who never, ever wanted him to be a Good Boy!

When Adonis’s super-strength zoomies create a huge mess (and leave a dog-shaped hole in the wall), he hears the two worst words he knows: Bad dog! Worried that his villainous origins mean he can never be truly good, Adonis turns to his creator, Doctor Von Malice, for help. But what she offers is a double-cross disguised as a fresh start — a complete reboot that would erase his personality and wipe away all memories of the friends and family who love him. 

Now, Cat Ninja, Fleabot, and a factory-reset Adonis must face mutant guinea pigs, a villainous vet, and an old foe with an explosive history to recover the literal keys to restoring Adonis to his lovable, slobbery self.

Adored by kids, teachers, and librarians alike, these hilarious, heartfelt full-color stories teach kids about friendship, bravery, and how to choose what kind of dog—or person—you want to be!

Includes a bonus tale featuring Master Hamster!

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