Philip K. Dick’s The Man in the High Castle is usually introduced by its premise: Germany and Japan won the Second World War, the United States has been divided between the Japanese Pacific States, the Nazi East, and a weakened buffer zone, and inside this occupied world people read a banned novel, The Grasshopper Lies Heavy, in which the Axis lost.

That is accurate, but it makes the book sound cleaner than it is. Dick is not mainly building an alternate history machine. He is writing about what happens when a political order becomes so complete that it starts to pass for reality itself — when power is no longer only law, army, flag, or terror, but taste, commerce, scholarship, etiquette, rumor, and even the private instruments people use to ask what is true.

Vonda N. McIntyre’s Dreamsnake (1978) won the Hugo, the Nebula, and the Locus Award, and reading it today you can feel why — not because it predicts anything, but because it understood something about institutional knowledge that was already true then and has only gotten sharper since.

The novel follows Snake, a healer in a post-apocalyptic American Southwest, who uses the venom of genetically engineered snakes to treat disease, cancer, and infection. Her most valuable snake — the dreamsnake, whose venom produces hallucinogenic visions that help patients confront trauma — is killed early in the book when she treats a superstitious community that panics at the sight of it. The rest of the novel is Snake’s journey to find another dreamsnake before her credibility as a healer collapses entirely.