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 brings death to others. Each pilgrim tells their own story, revealing the complex and interconnected nature of the universe they inhabit. Hyperion is praised for its intricate plot, rich world-building, and exploration of themes such as time, religion, and artificial intelligence.