The Mysterious Ball

The Mysterious Ball ("Fushigi na bōru" ふしぎなボール) - originally titled "Plankton Eroth Family" - is a chapter of the Astro Boy manga which originally ran in Shonen magazine in October 1957.

Collected Volumes
This story has been collected in the following volumes:


 * Astro Boy, Volume 4 (Kodansha)
 * Astro Boy, Volume 18 (Dark Horse)