The Harp of Power: The Book of Secrets 2

When Cat finds out that her cool new neighbour, Dr Becca Ryan, is a witch, she’s fascinated. Cat already loves magic and is sure she can learn loads. But when she turns to Becca for advice, Cat gets more than she bargained for. With her friend Shane, she ends on a quest to the island of Hy-Brasil, facing battle with an ancient and terrifying power.