This book is a YA Fantasy. It is the story of Levi, a Guard (kind of like a guardian angel for the dark side) and his Call, Hannah. Levi's job is to keep watch over sixteen year old Hannah until it is her time to die.
This story tells us what happens when a Guard breaks all the rules because he thinks they are wrong. There is a great deal of imagination about the workings of Heaven and Hell, as well as normal teen angst, lots of action and teen romance too.
It is pretty fast paced and kept my attention all the way through. I couldn't wait to find out how Ms. Curd was going to end it. I enjoyed it.