The Taste of His Sin. The Last Immortal, #37

In Last Immortal - Book 37: The Taste That Remains, Adrian, an ancient and controlled immortal, begins to experience a dangerous shift after encountering Elias-a man whose blood carries a rare corruption that destabilizes everything it touches. What begins as instinctive hunger quickly transforms into something far more complex: resonance, a forbidden alignment between two beings who should not be compatible.
As Adrian's senses heighten and his control begins to fracture, Elias reveals the truth he has long buried-his blood does not merely corrupt, it binds. Those who come too close are altered, drawn into dependency. To protect others, he has spent centuries isolating himself. But Adrian refuses to treat him as a threat. When external hunters arrive seeking to study, capture, and weaponize Elias's power, the fragile equilibrium between them is forced into the open.
What was once fear becomes confrontation, and what was once instinct becomes choice. Adrian steps into protection instead of restraint, fully embracing the dangerous connection forming between them. Together, they discover that their bond is not simple addiction or corruption-it is something deeper and far more rare: mutual resonance. Instead of destroying them, it begins to stabilize them, creating clarity where there was once chaos.
As danger escalates and outside forces attempt to break them apart, Adrian and Elias must decide whether to sever what they are becoming-or accept it fully. In the end, they realize the truth: their connection is not something inflicted upon them, but something chosen. A dangerous, intimate balance where hunger becomes meaning, and sin becomes survival. In a world that fears what it cannot control, their bond becomes both weapon and refuge.