Demon's Touch — Jennifer Loiske

Shannon McLean had come a long way since she lost her mother. A while ago she'd thought she was alone in the world, a plain Jane with no place to go. Now she knew better. Suddenly she was surrounded by relatives: a crazy talented twin brother, Ian, who literally held the keys to magic in his hands; a demonic father, Connor, who had paid a high price for a one-way ticket to hell; and a wannabe big brother, Simon, who was not only half demon but also a hit man of some sort; and herself