Cautious Existence

I don't know how it happened or even how it started, but it did. The thing we used to joke about in school, the thing we tell children to scare them. The zombies (or at least that's what I call them) have taken over Earth. They feed on the living I assume they are dead but I have never been close enough to feel for a heartbeat. They are much like us, they need food (the living), they are capable of dying (again?) and lastly they are capable of evolution. All it takes to be one of them is but a single bite or scratch. They are abnormally fast but easily distracted by their desperate need for flesh. I can't say there are any more living humans besides myself and Kevin. Because since the day The Lost took over we have not seen a single human besides ourselves. It scares me to think we are the only two left, and even our punch cards are running out.