Hyperion by Dan Simmons (Hyperion Cantos #1)

On the world called Hyperion, beyond the law of the Hegemony of Man, there waits the creature called the Shrike. There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all. On the eve of Armageddon, with the entire galaxy at war, seven pilgrims set forth on a final voyage to Hyperion seeking the answers to the unsolved riddles of their lives. Each carries a desperate hope—and a terrible secret. And one may hold the fate of humanity in his hands.

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Graphic Content:
- Violence and Gore: Frequent, graphic descriptions of war, brutal injuries, body horror, and death.
- Sexual Content: Explicit descriptions, nudity, and adult themes.
- Death and Genocide: Themes of mass destruction, colonization, and loss of life.

Moderate Content:
- Substance Use: Frequent consumption of alcohol and occasional drug use by characters.
- Mental Health: Mentions of suicide, intense grief, and severe psychological distress.
- Bigotry and Offense: Dated language, instances of sexism, and mild prejudices reflected through certain character perspectives.