The Affair of the Mysterious Letter

I wanted to love this book sooooo much. A trans protagonist, who is handled well, and it's not a book all about him being trans. A fun, quirky cthulu-y spin on sherlock holmes. A world where bisexuality is totally normative, with fun, quirky twists on gender norms. A protagonist who is both outcast from his home, but also deeply lives their values, and is adorably appalled by the mores of the society he finds himself in. At first, I loved it.
And yet, as I got further, I just found myself slowing down and uninterested. I think partly, I'm actually really not a mystery fan. But I just couldn't stay interested, sadly.