The scar on the world

We start heading towards the back entrance, which surprisingly, was not filled with people. When we get into the parking lot, we hear many blood curdling screams, that now, I know we're not coming from a ride, but something especially horrifying.
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Mark and Alexis find themselves, and there group, stuck in a world full of Rotters. Can mark and Alexis help save the world, and find a cure for the Rotters? Read more to find out.