Witness a first-person view of a changed world. A solitary survivor hides in a mountain above the city, living in a trailer with the door and windows duct-taped shut. Outside, the air is poisoned with a virulent disease that has killed off most humans. Those who lived have become something else. Something that hunts and kills. Survival in this new world comes down to two, simple rules: stay quiet and protect the air. It's an obsessive and regimented life, but one day a visitor comes up the mountain that threatens everything. Part I of a can't-miss series. Part II out now.