A House at the Bottom of a Lake

The book is a little strange but it starts with a guy asking a girl out. Sounds simple? It's not. They decide to go canoeing on their first date and find a mysterious lake with a house under it. I enjoyed the premise but I would have liked a little more fleshing out of their personal lives outside of the lake and each other. The house is really strange and their attraction to it. I liked the ending although would have liked a little more info at that time. It sort of ended abruptly. But it is still worth it.