Against the Day by Thomas Pynchon

A satirical historical novel following multiple families, adventurers, and
ideologues from the 1893 Chicago World's Fair through the early
twentieth century, weaving together anarchist labor violence, imperial
intrigue, mathematical mysticism, and airship adventure.

This book's strongest concerns are; alcohol, alternate sexual
ideologies, animal suffering/slaughter, anxiety, assassination, BDSM,
bestiality (attempted), body horror, child abuse, child labor exploitation, controversial commentary, dark content, divination, drugs, dubious consent (themes), erotica, explicit sexual activities/nudity, explicit sexual dialogue, fetishes (references), gore, hazing/intimidation, horror, murder, parental neglect/abandonment, patently offensive sexual content, pervasively vulgar content, profanity, prostitution, prurient behaviors, sex exploitation, suicide, torture, violence, and voyeurism.