"If you look hard enough at old photographs, we're there in the background: healers in the trenches; Suffragettes; Bletchley Park oracles; land girls and resistance fighters. Why is it we help in times of crisis? We have a gift. We are stronger than Mundanes, plain and simple. At the dawn of their adolescence, on the eve of the summer solstice, four young girls--Helena, Leonie, Niamh and Elle--took the oath to join Her Majesty's Royal Coven, established...

Dublin, 1952. When Mary Kate Ryan receives a surprise inheritance from the woman who abandoned her as a tiny baby, she's stunned. All her life, she has longed to know why her mother disappeared, and now she's devastated to realize that every lonely night she spent without a home or family of her own, her mother knew exactly where she was. Mary Kate is about to refuse the money when she sees a beautiful, deserted house for sale and something sparks...