Hyperion is a science fiction novel written by Dan Simmons. The story is set in a future where humanity has spread across the galaxy and is on the brink of war with an enigmatic alien race known as the Ousters. The novel follows a group of pilgrims who are traveling to the planet Hyperion, where a mysterious and powerful being called the Shrike awaits them. Each pilgrim has their own story to tell, and as their narratives unfold, the true nature of the Shrike and its connection to the fate of humanity is revealed. Hyperion is a richly imagined and intricately plotted adventure that explores themes of time, destiny, and the nature of consciousness.