Malec Fairy Tale series 1: A Beauty and the beast AU. After sending away a Shadowhunter in need, Magnus Bane, and everyone he loves become cursed by a demon. If he can love a Nephilim and have them love him back, the curse will be lifted. In order to save his siblings, Alec Lightwood gives himself to Magnus for their freedom. Will he be the one to lift the curse and save them all?