Delusion

Gabriel Burn has always been cursed. He has always been able to see demons. Yet after watching his mothers tragic death, when he was ten it got worse. Gabriel had an uncontrollable urge to feed. Not on blood, but on souls. Only with the touch of his right hand he could feed on someones soul, yet instantly the person would die. Gabriel had to live with this his whole life.
When Gabriel and his little sister Lucy move to a new foster home, they meet several new people who may now more about his curse then he does.

Yet all he knows is that he doesn't know if its real or if it's just a delusion.