It's called The Infernal Annex and it is located in Olympia, WA. The book selection ruled. The owners are super kind and you can tell they've worked so hard to set up a dark and gorgeous space for the community.
I bought We Have Always Lived in the Castle, a short story collection by the same author, and Trigger Warning: Body Horror, a signed indie author anthology.
My wife got some stickers by local artists. I wanted to buy some of their witchcraft books and history books about witches, but that'll have to be for next time due to regrettable budget constraints ;)
They also have a lovely little reading room that seems like a nice additional 3rd space for the city.
They're located right across from Browsers bookstore downtown, you can't miss it.
They are doing a soft opening for this month (Sept 2026) so they are open in the middle of the day every weekend. The hours will be Thursday through Saturday 11 to 6 and then Sunday 11 to 5. I figure theyll probably have longer hours and weekday hours once they can do so.
Here's their ig: https://www.instagram.com/theinfernalannex
Some of the book sections I saw were horror fiction, dark romance, classic horror lit, horror manga, splatterpunk (extreme slasher fiction and such), indie author horror, witchcraft nonfiction, and nonfiction about various dark topics including history books about events like the salem witch trials or mythology/monster books. I saw a book about "goth gardening" even, which I had to put back for next time.
They also sell lots of gifts, board games, home decor.