Buy: Atomcat by Osamu Tezuka

Paperback editions:

Reading the “Astro Boy” comic book with his dad is Tsugio's one refuge from the bullies at his school. One day he finds an abandoned kitten, and names it after the robot hero to convince his family to keep it. But after a strange encounter with aliens honeymooning on Earth, Tsugio's shocked to find his cat can speak ― and has all of Astro Boy's powers! Sworn to secrecy, Tsugio and Earth's tiniest hero together fight raging fires, awakened mummies, and more!

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