Believe it or not, I'm really not much of a fantasy reader. Yes, I love Harry Potter, but I tend to stick more to real science fiction, and maybe vampire/monster which are really more horror than fantasy. However, I got this book free from the bookstore. We had an Educator's event and had several copies of this book with a teacher's guide in the back. Our CRM told me I should take a copy since they were free since I am a teacher. So I did, and I read it at school during my lunch breaks. It actually was pretty good.
Basically the main characters are Kendra and her younger brother Seth. One of their grandparents dies and leaves money for all the children to go on a cruise. So Kendra and Seth are sent to their other side's grandparents to stay while they are on the cruise. At first it seems like a really beautiful estate with lots of pretty butterflies and lots of weird rules and people. Their grandmother is supposedly off visiting other family so they are left with their grandfather. Soon it turns out that Fablehaven is not what it seems. There is an old witch tied up in the forest where they are not supposed to go. There's a beautiful pool hidden away also in an area they're not supposed to go. Also, turns out those butterflies are fairies. And you can see them when you drink a special type of milk. Of course Seth just can't seem to follow rules, and this soon lets evil things appear on this special sanctuary for the supernatural.