The Sorceress: Witches of Orkney, Book 5

As Abigail embarks on her third year at the Tarkana Academy, the coven is under a dark cloud: their coven leader, Madame Hestera, has fallen under a deadly curse and Anarae, a powerful High Witch, has taken over the coven. Worse, Abigail fears that Abignus, the malignant presence that once took possession of her, has moved on to Calla.
While Hugo and Abigail seek answers, a surprising ally appears in Endera, Abigail’s long-time nemesis. Endera has sworn to help bring Hestera back, and now ...