OMG The gang celebrating Christmas!! Luke, Jocelyn, Clary and Simon(he always celebrates Christmas with Fray/Garroway even if he's Jewish) inviting The Lighwoods/Bane to celebrate with them. Especially Izzy and Max gets really excited. How could you not notice what's happening each December in the mundie world? Where would they celebrate tho? Not the Institute, that's for sure.. Oh maybe in the Jade Wolf?