Cintia’s recommendation of Lucifer's Hammer > Likes and Comments

This classic comet-strike apocalypse dedicates massive sections of the book to the pre-impact panic and the post-impact logistical reality of a small, fortified valley community. It treats the preservation of books, the production of basic chemicals like mustard gas for defense, and the engineering required to keep a small hydroelectric dam running with meticulous, hard-science respect.