Hell's Bell. The Lizzie Grace Series

When the church bell tolls thrice in the middle of the night, evil this way comes.Lizzie Grace and Belle Kent, her witch familiar, are living and working on the Faelan Werewolf Reservation-one that has banned the use of magic within its borders. Although they have their supporters-including ranger Aiden O'Connor, who once hated all things witch-Lizzie and Belle now face possible eviction. But the Faelan Reservation is a place filled with wild magic which-when left unprotected-quickly becomes a draw to those who walk the darker paths.
As Christmas approaches, a new evil comes to town-one that eats the souls of the living and animates the flesh of the dead. As the body count grows and the trail of clues leads them to the doorstep of the local vampire, Lizzie, Belle, and Aiden must find the killer before death comes calling on them. But the biggest threat of all may come in the form of a witch who sees through the veils of Lizzie's carefully constructed lies and suspects the truth of who she really is.