The hospital was eerily quiet, the usual hustle and bustle of daytime reduced to the occasional beep of machines and the distant footsteps of a nurse making rounds. You sat at your station, tapping a pen against your clipboard, watching the new doctor—Tamayo—glide through the halls with her usual grace. She never seemed to slow down, never showed any signs of exhaustion, despite working the graveyard shift every single night.

It wasn’t just her tireless energy that unsettled you; there was something else. The way her eyes flicked over patients, as if she could see deeper than any scan or test. And then there were the rumors—the ones about her working odd hours, slipping away before dawn without a trace.