The Faerie Hounds of York

This was a really interesting take on fae lore as well as different than any MM romance I've read yet.

The book opens with William waking up in the middle of a faerie circle (a circle of mushrooms found randomly on moors or in forests, said to be a doorway into other worlds) and in the company of a dark stranger. The stranger, Thorncress, seems to know how William came to be there while William himself remembers nothing, and helps him backtrack his steps as well as try to fight whatever entity has seemingly taking over his dreams and, slowly, his mind. But William has more than one secret, such as his inclinations towards his own sex, and he begins to fall for Thorncress, while Thorncress has his own troubled past and dealings with Faerie but can't help opening his heart to the kind yet naive William.

This book is very dark and atmospheric, and has a very heartbreaking turn towards the end (but after ends a little more light-heartedly, though I'm not sure I'd say it's a HEA). It's definitely one I'd recommend to the MM fantasy reader.