In a post-apocalyptic world, the young healer Snake ventures into unknown lands during her proving year. Her genetically engineered rattlesnake and cobra provide vaccines and medicines, while the rare alien dreamsnake eases pain and suffering. Of Mist, and Grass, and Sand won SFWA's Nebula Award. It is the first chapter of Dreamsnake, which won the Nebula, the Hugo, the Locus, and the Pacific Northwest Booksellers Award.