Ron wakes up to the sound of someone knocking on his bedroom door. He checks the time, it was 4 a.m, who the hell would be knocking on his door at that hour? He gets up from the bed and opens it a little, looking out of the corner of the door who it was. "Marie? What are you doing here?" Asks surprised. "For Merlin's sake..Come in before they discover you being outside of your room." He lets you in.