As I considered this unpleasant piece of information, I found myself in a dark place, lost amid piles of skulls and bones piled higher than I could strain my neck to see, piles high enough to block out the light and the sun. I could hear the awful rasping rattle of someone's dying breath, all sick and muffled. I turned and saw a gas mask staring out at me from one of the piles, the eyes black and empty.
I knew that the gas had been released in the air. I tried to hold my breath and run. But I just kept hearing that rattle, right over my shoulder, right at my ear, dogging my heels. I kept seeing those black-eyed masks staring out at me from every pile. I ran on and on, but there were just more and more piles, and I knew I'd never make it. I'd never escape the gas before my lungs gave out and I'd be forced to take a breath.