A Witch in Salem by David Sumner

Elphaba Thompson has always known that she was different. She has trouble making friends, she doesn't seem to fit in with anybody, and she talks to her dead father in her dreams. Raised in a Wiccan family, Elphaba has never doubted the supernatural but when her father warns her of impending danger she's shaken. Is it all just dreams and fantasy or does she have a connection to the spirit world. And if so, can she protect herself from the evil that is threatening her?