Jungle Devil Boundary

Jungle Devil Boundary is a chapter of the Astro Boy manga which originally ran in Mighty Atom Club magazine in December 1964.

Plot Summary
The chapter is a reworking of an earlier Tezuka story from 1948, previously centered on the character of Kenichi Shikishima, but here replaced by Astro Boy.

Collected Volumes
This chapter is one of the few Astro Boy manga chapters to have never been reprinted and, therefore - outside of the original printing - is considered to be a "lost" chapter.