The Friday Freebie from Barnes and Noble this week is a paranormal romance, 'Heart of the Witch' by Alicia Dean. Ravyn is a witch who is attacked by a serial killer. She escapes by using her magic in a way which violates the coven rules. The killer is none too happy either. Ravyn cannot tell the detective how she managed to escape, and she can't let her coven know, either. Sounds like an interesting book. Here is a synopsis from Barnes and Noble.
A beautiful young witch must choose between maintaining the anonymity of her coven and trusting the detective who would bring a heartless serial killer to justice.
You can pick up the Nook version here. Other version are available for sale, but at this time the freebie is available only for the Nook.