With 'Pretty Girls,' I saw the opportunity to talk not just about crime but what crime leaves behind.

As the youngest of three girls, most of my childhood works were revenge fantasies against my older sisters, so of course the sisters in 'Pretty Girls' share some similarities to my own.

Anyone who's been to high school with teenage girls knows how horrible girls can be.

Pretty girls have problems too.

I read a lot of true crime growing up - 'The Stranger Beside Me' by Ann Rule about Ted Bundy.

I think crime fiction is a great way to talk about social issues, whether 'To Kill A Mockingbird' or 'The Lovely Bones;' violence is a way to open up that information you want to get out to the reader.