By Jules Verne
A thrilling adventure of work and war in the empty void between the planets.
This double novel also includes Duel of the Space Wizards
Castaways of the universe — marooned on a lost planet of war-crazed females!
Also, ‘Radio to other Worlds’, and ‘Religion and the Saucers’
Of course, that thing on the cover looks nothing like a saucer.