The 3:00 AM Call is a horror novel by Jacob Gomes. The book blends supernatural horror with psychological and technological themes, centring on the story of Adam Hartwig, a 27-year-old office worker whose life unravels after he begins receiving mysterious phone calls at exactly 3:00 AM, the so-called "Devil's Hour." The novel explores themes of loneliness, technological possession, demonic mythology, and the fragility of identity in an interconnected world. It is structured in four parts-The First Call, The Signal, The Mouthpiece, and The Broadcast-charting Adam's descent from an ordinary, socially anxious man into the unwilling vessel of a demonic presence that spreads globally through modern devices.