Winning Vote:
Option 1 – Dodge left!

You roll to the side, grinding your skin against broken glass and metal slivers. These new lacerations fill with the thick layer of dust and indeterminate powder from the floor and burn horrendously. Closing your eyes to block out the pain, you lose track of the beast behind you, but a gust of air moving past you indicates you barely dodged its lunge.

Your hands feel across the detritus on the floor, searching for something of sufficient size to use as a weapon. Landing upon a large shard of glass, you grip it tightly and feel the blood drip from your fingers and palm as the glass slices into your flesh. Sensing the beast in front of you but still unable to open your eyes, you scream a battle cry and haul back to take a blind swing when—

“Stop!”

—a muffled voice cries out amidst large thumps from pounding on something solid. Still holding the makeshift knife forward and waving it from side to side defensively, you try to open your eyes.

“Don't kill it!”

All you can manage at first are a few experimental blinks, but, in short order, you have your eyes wide open. It takes a further moment for your vision to clear to a point sufficient to see a dirt-covered, calico cat sitting in front of you, its head tilting from side to side as it follows the tip of your knife. Though your heart is still pounding in your chest, you let your impromptu weapon drop as take deep, long breaths.

Momentarily forgotten, the voice speaks once again, “Oh, thank you, thank you. I just couldn't stand to lose that little girl.” Glancing towards the source of the voice, you see why it sounded so faint: large holes perforate several of the walls, and the man who spoke to you can be seen at least a dozen rooms away sealed behind a large, thick pane of glass. He must have been shouting at the top of his lungs for you to have heard him.

“Come over here so I can look at you. You're the only living person I've seen in weeks, and, oh, are you hurt? I can point out where all of the medical supplies are around here. Didn't have much to do but watch while I was in here.”

You tenderly climb to your feet, careful to avoid wounding yourself further. As you brush off your pants legs, a rapid slurping noise draws your attention over to the side where the calico is greedily licking the blood off of your discarded shard of glass. You consider throwing something at the cat, but pity convinces you to leave the animal alone.

“Just come talk to me for a bit,” the man pleads. “It's so lonely in here.”

You walk toward the man, stepping over busted hunks of concrete and overturned cabinets. What's left of the paint job in the first few rooms matches that of the initial exam room you started in, but the walls become more stark and utilitarian with each room you cross.

“Did you come from outside? What's going on out there? Who won?”

Something about the look of a demolished desk catches your eye, and you kneel gently to pull out a folder from amongst the shards of wood. Its contents are completely illegible, but underneath the ground-in ash on the cover can be read the words “Original Sin.” Alarmed you look up and notice for the first time that the man is not standing behind a pane of glass, he's sealed in a room made of it. In the background, the dull intermittent hiss of an air filtration flips on briefly before dying. Seconds later, it flips on again before grinding to a stop. Something unusual definitely happened here.