Restless : The King Quartet, Book 3 (The King Quartet)

When she agrees to allow Ms. Lacusta to help develop her powers, Tasmyn has no idea how deep and dark the journey will become. Trapped between fascination and fear, she moves farther away from friends and family, even her boyfriend Michael. Leading a double life forces Tas into decisions that will threaten her sanity and her future… and the very lives of those she loves.