Wool (2012)

Overview

"Wool" is a science fiction novel by Hugh Howey, set in a post-apocalyptic world where humanity lives in a giant underground silo bunker with 148 floors. The outside world is poisoned, and the only connection to it is a screen showing the ruined landscape. Society lives under strict rules believed to protect the inhabitants. Sheriff Holston, who for years strictly followed the laws, breaks the greatest taboo — he asks to go outside. His decision sets off a chain of events, and Juliette, a mechanic without proper training, is appointed in his place, and she begins to uncover the silo's secrets.

Franchise chronology

• "Wool" (2012) — the first book in the "Silo" series, consisting of several novellas and short stories combined into a novel.
• "Shift" (2013) — the second book in the series, a prequel that reveals the backstory of the silos' creation.
• "Dust" (2013) — the third book, concluding the trilogy.
• "Silo" (2023) — an Apple TV+ television series based on the book series.