Ludo exited the second floor corridor and entered the Arithmancy classroom. It was eerily quiet as he came in.
"Hello Professor Shackleton." he said, smiling. "Hope you're well today."

He made his way to an empty desk in the middle of the room and sat down, taking a quill and parchment out of his bag.
"Bet we're doing a lot of numerical figuring today...like always." he thought, smiling again.