It appears to be zombie (with a few werewolves) central. I am not as conversant with zombies as I might be, but I do recognize a number of the titles.
While I don't have anything in particular against supernatural apocalypses, or even virus induced supernatural apocalypses, as zombie attacks are now derived, I did ask them which of their titles were non-zombie or werewolf based.
The following list came back.
Long Voyage Back
Long Voyage Back is a classic reprint that I have already reviewed. Neena Gathering, dates back to 1988, and I already own based on some strong reviews I saw somewhere.. The other four are more recent, and of them, I have seen 14 get some strong reviews. It certainly gets at the front of alphabetized lists. If I ever get around to writing a novel, I will have to remember to call it "1!" by Aaron Aardvark. Nothing like getting to the head of the line!