The book I'm looking for is a romance,not that thick,the cover picture: its at night there is a moon and this man is standing behind this young woman I think she has on a cape. Its about the girl and her sisters when this girl gets frightned she makes fires start.and when she makes love to the man for the first time she causes a small fire on the rug in the bedroom,also in one part of the book the people in the town see a mysterious fire start but she quickly tells them that it was from a device used by a older lady to help her start her regular fires(lighter).and there is at least 2 but I think 3 books to this series.