A smirk crossed Fred's face before he replaced it with an innocent look. He became more visible once the girl became angry, and he decided to put him in a more clueless position. Fred floated through a wall into an empty classroom, and then floated through the door back into the corridor, and next to the girl.
"What did Peeves do this time?" Fred made sure he had a curious expression on, refusing to let himself smile. He reminded himself to thank Peeves next time he stumbled on him. This is just what Fred needed.