Expeditions sent to explore Jupiter’s famous Red Spot have vanished without trace. Captain Brand Bowen of the Planetary Exploration Forces and his friend Dex go after them and are seized by the strange, tube-bodied Pipe-men. Imprisoned in a tower, threatened with torture and inquisition, they must use their wits and an atomic motor to survive.
Pure 1931 Astounding Stories adventure, full of rayguns and alien tyrants. Download the free EPUB.