I have yet to read Megan Miranda's first book but I had heard good things about it so I was excited to read Hysteria. Now I am a big wimp. I don't watch horror movies or read books that are marketed as horror so I was nervous about how scary Hysteria was going to be and I am happy to say it was not too scary. Yes I was freaked out but not too much that I could not enjoy the book.That being said Hysteria is not really a horror book. It is more of a thriller and thrilling it was. I mean the main character KILLED her boyfriend. This is not one of those books where the main character might have killed someone. We know from the very beginning that she did it. But we have to learn along with Mallory why she did it.The new prep school is so creepy. You could not pay me to go there. And it gets even worse when some kid shows up dead. Of course everyone thinks it was Mallory, but Mallory is not sure. Everyone is creepy and I did not know who Mallory should trust.Overall Hysteria is a great psychological thriller that will keep you on the edge of your seat trying to figure out what on earth is going on. And if you are like me you will be surprised by the ending.