This was an interesting read. I quite enjoyed the three different stories of Odessa, Solomon, and Blackwood happening throughout and how each of them came to find themselves mixed in otherworldly business. I found each one added something extra to the story in a good way. While we got to know a bit about each of them and in turn the mostly unseen dangers threatening the world, there's clearly so much more to know about them and the larger beings in play. I'm really curious to see how this tale continues. While definitely different in many ways, I couldn't help but think of The Outsider/End of Watch/If It Bleeds by Stephen King while reading The Hollow Ones. Maybe in the way the supernatural entity hid behind an unassuming human mask so well to do its nefarious deeds, and the inclusion of a unbelieving detective caught up in something much larger and crazier than they could have imagined. Some interesting parallels there for sure. Also, probably still relatively fresh for me since I read all of these in the past 6 months. I could see fans of those books liking this one too.