Sinead

Sinead was the aunt of Siobhan Smythe.

Biography
When Siobhan starts having visions of a banshee, she goes to talk to Sinead at her magic shop. Her aunt tells her that one of their ancestors stole something from a banshee years ago. As a result, all of the women in the Smythe family are affected by a curse. Whenever someone wrongs them, it stirs up the spirit of a banshee. Sinead tells Siobhan that her scream will grow more powerful until she can send it anywhere in the world. However, unless she kills the person who wronged her, it will destroy her soul. When Siobhan asks if this had ever happened to her, Sinead responds by implying that this was the reason that her husband William had died.