Holy moly this book is sooo good! Who knew I needed a book about killer mermaids? Also I am never going in the ocean again. I will say I was not expecting as much science as this book offered but I found it very interesting. It took a bit to get used to the pacing of this book because it moves at a slower pace especially initially then you would think a scifi horror would. There were also scenes where it would be moving very quicklly and then slow down so the pacing took a bit to get used to but it mae a lot of sense. This book is literal perfection , it even made me care about the characters which I tend not to when I know there is a possibility that they can die. Overall this book was very well done, very enterttaining and is one that will stick with me for a long time