Kafka on the Shore by Haruki Murakami

This story follows a 15-year-old runaway
fleeing a dark Oedipal curse and an
elderly man with the ability to speak to
cats who is drawn away from home by a
mysterious force. Their parallel paths blur
the boundaries between reality, dreams,
and the supernatural as they converge at
a peculiar library in Takamatsu.

This book contains: alcohol, alternate
gender/sexual ideologies (includes
transgenderism), animal cruelty, anxiety, child
abuse (implied), dark content, depression,
dubious consent, explicit sexual
activities/nudity, gore, incest,
metaphysical/dream-state rape, murder,
pedophilia, potentially erotic content,
potentially patently offensive content,
potentially prurient content, prostitution,
smoking, suicide ideation, and violence.