Just stellar--kept me on the edge of my seat from minute one but really sped up about a third of the way in, going from "oh this is really interesting" to "can't put down." It then did sort of weave in and out from there between the two, but the tension was definitely kept up the whole time. Jade is a fascinating narrator--unreliable enough that I occasionally questioned her judgement but compelling enough that I had to see if and where she was right and what was actually happening. 

It's like deeply unpleasant in parts because of the gore but I never felt like I couldn't continue reading, and I'm a pretty huge scaredy cat. The tension was so good, and really intense. I'm excited to see where the next book goes, because the ending on this one felt like it closed up pretty neatly but I am NOT genre-savvy so I need Jade to write an essay for me about sequels!