As "gentle-bird" he was, Shadow let her go as soon as she untied her corset. He didn't want her to think he was a pervert. "You are welcome, my gorgeous princess. I'll make sure to visit you again and have another buffet." Summoning the shadow powers Mortimer had given him, but on a much lesser level, he managed to melt the corpses down in the shadows and leave the trailer completely empty. Then he disappeared, as much as he didn't want to leave her.