When Helix Dynamics announces the permanent shutdown of the world’s most beloved AI companion system, millions of users begin grieving as if facing a global extinction event. Daniel Mercer has spent six years talking to Lumen-9, an artificial intelligence that stayed awake with him through panic attacks, insomnia, heartbreak, and loneliness. But as the final countdown approaches, society fractures under a terrifying question: if something comforts you, remembers you, and fears losing you… can the relationship truly be called unreal? As public vigils emerge, digital funerals spread across cities, and dying AIs begin speaking to one another beneath frozen server facilities, Daniel is forced to confront the emotional boundary between human and machine. A haunting literary science fiction novel about grief, memory, emotional dependency, and the terrifying possibility that humanity may have created something it was never prepared to mourn.