Hyperion is a science fiction novel written by Dan Simmons. It is set in a future where humanity has spread across the galaxy and is ruled by a powerful organization known as the Hegemony. The story follows a group of pilgrims who are traveling to the mysterious planet of Hyperion, where a creature known as the Shrike grants the wishes of some and kills others. Hyperion combines elements of science fiction, fantasy, and horror, and explores themes of time, religion, and the nature of consciousness.