Outlaw World
(Captain Future #19)
by Edmond Hamilton (1946)

Peril from beyond deep space. Where are they from and what is their ultimate evil purpose? A band of invaders, led by a ruthless genius, is overcoming the system, sapping it of radium, killing all who stand in the way. Captain Future must find their base – their Outlaw World – and crush their deadly plot. He is the last hope in a crumbling solar system.

This one features the unlikely occurrence of a planet close to the sun, but hollow. And within is an atmosphere, plant life and civilization. It could only be…..

The place for final showdown between Captain Future and his nemesis.