Always a Witch
Tamsin Greene who was raised in a family with Talents but without any of her own has discovered that she has Talents. Now she must travel back in time to stop the evil Knight family from destroying her family in the past. Most of the story takes place in New York City in 1887 when Tamsin gets a job as a maid in the Knight house.This was a good conclusion to the series but I highly recommend reading or re-reading Once a Witch first to get up to speed on beginning of the story.