American Gods by Neil Gaiman

An ex-convict named Shadow is caught in a gritty, violent power struggle between ancient mythological deities and the modern gods of technology and media.

This book contains: alcohol, alternate gender/sexual ideologies, animal sacrifice, anxiety, cannibalism, cults (themes), dark content, deception, depression, derogatory terms, divination, drugs, drugging, dubious consent, explicit sexual activities/nudity, gore, molestation (implied), murder, patently offensive content, pedophilia (implied), profanity, prostitution, ritualistic self-mutilation, sexual assault, slavery, suicide, supernatural body horror, torture and violence.