The Unbecoming of Mara Dyer

The Unbecoming of Mara Dyer by Michelle Hodkin is a psychological nightmare.  Mara has moved to a new town, but is haunted by her past.  An incident occured in her group of friends and it's driving Mara crazy.  If you like psychological thrillers or need a book to read this Halloween, this is a great book.  There are two other books in the series.