He didn't want a lover. He wanted a variable to complete his equation.
Silas Vane is not a man; he is a high-functioning sociopath who sees the world as code. Cold. Calculated. Lethal. As the architect of New York's shadow empire, he has no use for chaos.
Until he finds her.
Elara Vance. An invisible archivist who witnessed a murder she should have missed. She was supposed to be a loose end to be clipped. Instead, Silas makes a terrifying calculation: she is the anomaly he must possess.
Captured in a penthouse of glass and steel, Elara is stripped of her freedom and given a gold collar-a seal of absolute ownership. But Silas doesn't just want her body. He wants to dismantle her mind, map her fears, and rebuild her as the perfect keeper for his monstrous soul.
"Run, Elara. Swim until your lungs burst. But we both know you fear the silence of the ocean more than my hands on your throat."
From the blood-soaked floors of Manhattan to a volcanic island in the Pacific, Elara evolves. She stops being the prey. She realizes that to survive a monster, she must become the one thing he cannot predict.
This Master Edition collects Volume I, II, and III of the Ruthless Keeper saga in one uncompromised volume.
WARNING: This is a pitch-black romance containing graphic violence, extreme possessiveness, and trauma bonding. There are no heroes here, only villains and the women who bring them to their knees.