Hyperion is a science fiction novel written by Dan Simmons. It is set in a future where humanity has colonized numerous planets 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 mythical creature known as the Shrike resides. Each pilgrim has their own reason for undertaking the journey, and as they share their stories, a larger narrative unfolds. Hyperion is known for its richly detailed world-building, complex characters, and blend of science fiction and fantasy elements.