The Daughters of Warring by Lori Titus

Plagued by unexplained occurances and a series of misfortunes, a town turns against its own young. There seems to be a witch in their midst, a powerful being that is responsible for death and depravity.

Daughter of the town's fiery Reverend, Isabel Warring is the most unlikely of suspects. With the time before her execution ticking down, she puts together the events that caused her to be accused of crimes she did not commit.