I have no idea if anyone here will like this, but as a cross between at least two genres it may be of interest.

(Not sure link will work - it's SSL and I remember that DCForum is sometimes odd)

https://uncannymagazine.com/article/down-and-out-in-rlyeh/

In the author's words: "You should read this story, if for no other reason than that I got to use the phrase “antediluvean ass-bombs” in it."