"Albus," Oliver said sternly. He wasn't going to let him walk off thinking he'd screwed up or something. "Percy's not going to be mad at you," he said firmly. He was convinced that Percy wouldn't be. Oli might be a little made at Percy for keeping something like that from him, but really. "I'm not gonna go and run to Percy and tell him you said that, aye?" Oliver wouldn't, not if it made Albus feel this terrible.