Published in 1942, 'The Crystal Planetoids' by Stanton A. Coblentz is a science fiction novel that follows Philip Dunbar, Ronald Gates, and Eleanor Firth as they uncover an extraterrestrial threat affecting Earth's atmosphere. Using Gates' invention, the Infra-Red Eye, they reveal the presence of Saturnian invaders constructing webs in the sky. Captured and taken to one of the Crystal Planetoids, the characters confront the alien menace while grappling with moral dilemmas and their relationships. The novel explores themes of human resilience and the clash of civilizations in the face of overwhelming odds.
