*Spoiler alert*
I know the book isn't finished yet, but the story is amazing. After each chapter you're wondering what will happen next. Will Hayley survive? And who is the guy in the skull mask? I wouldn't be surprised if the boy in the skull mask is a citizen from hollow.
In the hollow ball you have a whole new kind of magic. The head character isn't some kind of mighty heroine, but is tossed around by everyone and everything and trying to survive the night. That makes this book different from others.
Also, the reader doesn't know anything the head character doesn't know. The book is one big unsolved mistery.
The only less good point is the rate in which the writer updates. You usually have to wait about a month before the book is updated.
(the next book will be up around tommorrow, this one will be totally different, and I think less popular)
