The thought-feeders

"The Thought-Feeders" by R. R. Winterbotham is a science fiction novella written in the early 1940s. The narrative follows two aviators, Dr. Kempster Duerkes and Captain Lewis Hawes, who encounter an extraordinary phenomenon during a high-altitude flight. The book explores themes of consciousness, evolution, and the existence of higher forms of life in the stratosphere that consume thoughts as sustenance. In the story, Dr. Duerkes and Captain Hawes find themselves unexpectedly trapped in a greenish cloud after their airplane experiences a mechanical failure. Once engulfed by the cloud, they lose their sensory perceptions and undergo a transformation that allows them to communicate with the cloud beings, known as the Green Clouds. These entities reveal that their existence relies on feeding off the thoughts of lower beings, like humans. As the two men adapt to this new realm, they grapple with the Green Clouds' peculiar lifestyle, which lacks tangible labor and relies solely on mental creation. Fascinated yet bewildered, Hawes and Duerkes ponder their role in this bizarre society, ultimately attempting to escape and return to Earth. The story culminates in a dramatic departure as they build a new airplane from their thoughts, leaving behind the unusual and thought-driven existence of the Green Clouds.