Stephen King multiverse

The man in black fled across the desert, and the gunslinger followed. So begins the long walk of Roland Deschain, last of an order of knight-errant pistoleers, across a land that has "moved on" — where the compass points drift, dead machines rot toward sentience, and the weave of what's real wears thin. His quest is the Dark Tower itself: a spire standing at the hub of every world that exists, the linchpin that holds all of them back from ruin. Roland's road runs eight volumes, from The Gunslinger through the closing Dark Tower, with the later, interleaved tale The Wind Through the Keyhole folding a story-within-a-story back into his youth. Along the way he draws a ka-tet — a fellowship bound by fate, not choosing — through doorways between worlds: a heroin-shackled New Yorker, a woman of two minds, a boy who dies twice. The Tower is also the secret axle around which the wider shelf of King's work turns; threads from The Stand, 'Salem's Lot and beyond wind quietly toward it. Expect a mongrel of Western, high fantasy, horror and decayed science fiction, told in a dusty, incantatory dialect all its own — ka, thankee-sai, the world that has moved on. This is King at his most mythic and most personal, a decades-spanning circle that rewards a patient reader. Begin at the beginning: The Gunslinger, then walk forward in publication order. There are other worlds than these — but this door opens first.