Brad had been on his way to the library when a curious noise stopped him in his tracks. He looked around to see if anyone was around, but no... the corridors were empty. And then he heard it again. He pulled out his wand and looked around curiously before hearing it coming from...the wall? He frowned and took a few steps closer, and a few more, until his nose was nearly against the wall. He stashed his wand behind his left ear and turned the other to the wall, trying to hear if the noise was coming from behind there. He knocked against the stone. Nope... mostly solid.

"Hello in there...." Brad said into the wall, tapping again and waiting to hear if he heard the noise again. A first year had come along and stared at him for about a minute before leaning forward and sticking her ear to the wall. Brad held up his finger to his mouth, indicating her to be quiet. There was a scuffling noise from behind them and the first year squeaked, jumped up and ran off. Brad chuckled to himself and turned his head so that his other ear was pressed against the wall and that he could see who was standing behind him. "I think there's something behind here. Do you think house-elves have like a tunnel system behind the walls?"