The Bind

"Lorelei’s black robes swirled around her in a cocoon and the spell flickered over her, sputtering out. Her robes then unfolded like huge batwings. How did she learn THAT one?? Esme thought, gaping. Lorelei leaped from the window and flew after her, the black wings looking too sharp to be fabric. Esme pointed the broom towards the woods and sped off again. The important thing is not to panic, she told herself."

Fanart from Blood Ties. Lorelei is possessed by a malevolent force which happens to have a bone to pick with poor, vampire-hunting Esme.