Eclipse - Cate Tiernan

While at her friend, Mary K's house, Alisa steals a Book of Shadows from Mary K's elder sister, Morgan. Alisa is inexplicably drawn to the book. She makes the shocking discovery that this Book of Shadows was written by her mother, which means that Alisa is half-witch. She turns to Morgan and Hunter, both blood-witches, for support and development of her powers. Her revelation comes just in time, for the dark wave is upon them and the witches of the Kithic coven join forces to defeat this evil before it destroys everything in its path.