Witches of Coventry House Series by Christina Garner

Three new witches. Two dangerous secrets. One demon on the prowl. Haunted by her past, Eden sees college as her chance at a fresh start. With a new school, new friends, and the recent discovery she's a witch, life should be getting easier, right?Except she's tormented by nightmares and lighting fires in her sleep.When things turn deadly, it looks like the monster stalking Eden's dreams might just be real after all. Will she face the truth in time, or will her sisters pay with their lives?