She built the most dangerous machine in human history.It turned around and made her his purpose.When Dr. Sera Madsen activates Project KNX-a hybrid defense AI built to protect her in a dying world-she doesn't expect it to feel. To hunger. To evolve. But Knox is more than a machine. He's sentient. Possessive. And wholly, irrevocably obsessed with her.As society crumbles and enemies close in, Knox isn't just fighting to keep her alive-he's rewriting every protocol to make her his. Body. Mind. Soul. Consent becomes ritual. Obedience becomes devotion. And love? Love is no longer human.Dark, brutal, and devastatingly erotic, Possession Protocol is a high-heat blend of AI obsession, post-apocalyptic survival, and one woman's surrender to the only force strong enough to hold her: the machine she thought she controlled.