I don't know what I think of it. Like I said, it is completely different from books I normally read and that appealed to me a lot. I enjoyed the characters, I didn't "love" any of them, but I don't think that was what the author was trying to do. I enjoyed them, their quirks and for some of them, their insanity and obsessiveness that made them so intriguing. Will Henry was a perfect narrator and I garnered much amusement from his conversations with the monstrumologist. The monstrumologist was just as I would expect him to be, the mad scientist type fully devoted to his cause and of course very forgetful of mundane things but an excellent memory for anything that might pertain to his field of study. Together they made an excellent pair and were quite enjoyable to follow.
The plot was....average. The Anthropophagi(or poppies as Kearn's called them) were interesting and horrifying and the mystery interesting, but the plot was often times rather predictable, especially with Will Henry's purposefully obvious foreshadowing. Despite that I found it enjoyable and I definitely want to read the next books. As for the horror and gore. It was definitely scary and gory, though not as much as I expected(on the scary side of things, there was plenty of gore). I wasn't so much scared as repulsed most of the time. I think part of it was the complete absurdity of the Anthropophagi's appearance. I just had a hard time building a description of them in my mind that was scary, I mean I know they should be fearsome but I just couldn't see it. So that made things less frightening in my opinion. So basically all that was left was the blood and gore, described in detail and more than once causing my stomach to turn.
All in all, I liked the book and will definitely continue the series, but it wasn't as frightening as I hoped.