"11/22/63" is a science fiction novel by Stephen King that follows the story of Jake Epping, a high school English teacher who discovers a portal that leads to 1958. After being convinced by his friend Al to use the portal to prevent the assassination of John F. Kennedy, Jake embarks on a journey through time to change the course of history. Along the way, he falls in love with a woman named Sadie and faces various obstacles that threaten to alter the timeline he is trying to change. The book explores themes of love, loss, and the consequences of trying to change the past.

This novel weaves together the lives of diverse characters through a narrative that spans decades, centering on a teenage runaway with psychic abilities. As she becomes embroiled in a covert war between immortal factions, the story explores themes of mortality, power, and the interconnectedness of human lives. The intricate plot moves through different times and places, revealing a hidden world of mysticism and a looming apocalyptic crisis, all while examining the impact of our actions on the future of the planet.

In this sequel to a science fiction saga, the story continues as a group of pilgrims trapped on the planet Hyperion face the looming threat of the Time Tombs, which are traveling backward through time. Meanwhile, the interstellar Hegemony they once belonged to is on the brink of war with the Ousters, a group of spacefaring barbarians. As the complex political machinations unfold, the pilgrims' personal tales intertwine with the fate of the universe, revealing their connections to the mysterious Shrike—a creature that may hold the key to humanity's salvation or its ultimate destruction. The narrative weaves together multiple timelines and perspectives, exploring themes of memory, destiny, and the nature of intelligence.