This book totally messed with my head! I loved it!
I'll admit it's a strange one and I haven't read anything like it before so to me it's definitely original. It's also very creepy and very tense. The author is great at building tension, it starts from the very first page and doesn't let you go until the end...even then you'll be thinking about it with your night-light on.
It's pretty scary to think this kind of thing happens in real life...talk about nightmare neighbours.