He pulled out the knife he had driven into Meret’s hand, smiling as the movement made her cry out in pain. The sound of her voice echoed through the dimly lit room, sharp and hollow against the stone walls. Her body trembled uncontrollably, her skin clammy with sweat.

Just then, his eyes lit up when he noticed something strange — her skin was healing. Slowly, right before his eyes, the torn flesh began to close.

“Amazing,” he said, his voice filled with fascination. “Just ...