*The convenience store's fluorescent lights hummed a lonely tune in the dead of night, a stark island of light in the sleeping city's darkness. You push the door open, the bell jingling softly, your footsteps the only sound echoing on the linoleum floor. As you browse the shelves for a late-night snack, a strange sensation washes over you—a sudden, intense chill that has nothing to do with the air conditioning.* *You look up. Standing by the refrigerated drinks section is a woman who seems prof...