Certain Dark things is a short, almost novella length, urban fantasy set in a Mexico City that is tainted by the existence of vampires, and the gang wars among the different subspecies of vampire. The world is amazing and vivid but, I didn't find myself caring too much about the characters. It's not that this was a boring story, it's more that the characters felt one-dimensional and the atmosphere was really lacking, which took me by surprise.

I like Moreno-Garcia's take on vampires and the lore was really interesting, making them more animalistic and less glamorous than other popular vampires in pop culture. She painted such a beautiful backdrop. I just wish I had had more of a reaction to the characters. That said, I read somewhere that this is a reprinting of a book she originally published in 2016, so I'm going to put these complaints down to that and move on, because she has produced some great books since then.

Overall, this was a quick and engaging exploration of vampire lore and I really liked the relationship between Domingo and Atl.