Amazing storyline. It kept me guessing the whole time and I wasn’t often able to figure out what was going to happen. It wasn’t to sciencey so I was able to understand it. There was so much more drama than I thought there would be (spoiler alert!!!!) there were also more deaths! At times I found this book scary and as I don’t like the idea of the end of the world that scared me! Haha. But it was amazing... creepy but amazing. I would recommend this book for mature readers 13 and over. I personally couldn’t read it at night but that’s just my opinion. I liked the characters in this book and thought they were all well enough developed that I was able to form bonds with them. Especially the main character!