City of Glass by Paul Auster

A struggling author becomes entangled in a complex mystery when he receives a wrong-number call asking for a private detective. After impulsively deciding to take on the role, he is hired to protect a man from his mentally unstable father who has recently been released from prison. As he delves deeper into the case, the lines between fiction and reality blur, leading him on a metaphysical exploration of identity and purpose.

The 5984th greatest book of all time

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