radium theft
Men of Vengeance by William A. Todd
Men of Vengeance – Two short novels about men who had been used and taken advantage of, and how they had overcome.
The Narratives of Gregg Haljan by Ray Cummings
Two great early space opera novels, Brigands of the Moon (1930), and its sequel, Wandl, the Invader (1932) in which Gregg Haljan saves the world first from space pirates and then from space invaders.
Brigands of the Moon by Ray Cummings
One of the early great space opera novels, Brigands of the Moon by Ray Cummings (1887-1957) was serialized in four parts in Astounding Stories of Super Science in its March through June 1930 issues. Gregg Haljan, Third Officer of the Planetara, must fight Martian pirates and Earth traitors to protect the precious radium ore found on the Moon from being hijacked.
Outlaw World by Edmond Hamilton
Outlaw World – On the trail of malevolent space pirates, Captain Future (Curt Newton) and the Futuremen combat the evil machinations of the Uranian Ru Ghur, who plans the total destruction of the Universe!