3.70ish?? Something more than 3.5 stars but less than 4...take your pick lol. 
 I still don't know how to rate/review this book. 
 I enjoyed it but I wasn't entirely sold 
 I went from elated to heartbroken more than once but I don't know I can't put my fingers to it... let's say I was left with a unsatisfied feeling 
 I loved the ending, heartbreaking as it was. However I must say that the Chaos Eater reminded me a bit too much of Osaron from The Shades of Magic series. 
 Mind you, this is a good series... I'm just used to expect better from Victoria Shwab.