In this mind-wrenching classic of science fiction, the Hugo and Nebula Award-winning writer Theodore Sturgeon places an unwitting humanity on a collision course with an organism of unimaginable power and immeasurable malevolence.

Until recently, Gurlick was a substandard specimen of Homo sapiens. But now this craven, seething, barely literate drunk has ingested a spore that traveled light years before touching down on our planet. A spore that has in turn ingested Gurlick and turned him into a host for the Medusa, a hive mind so vast that it encompasses the life forms of a billion planes – and is determined to ingest Earth as well. Crackling with suspense, overflowing with invention, and startling in its compassion, To Marry Medusa is a tour de force from one of the great imaginers of the golden age of speculative fiction.