Back in April 2014, I read Life After: The Arising. This is the prequel and it will answer a lot of questions that came up in The Arising. I would recommend reading Life After: The Arising before this one, even though this should have been first, simply because (1) this is a short story, and (2) without the knowledge of what happens in The Arising, this story will not be as effective.
As this story ties in closely with The Arising, I am including a link to the review I posted for that story as well. These are well worth reading.