Peter was actually cleaning out one of the cauldrons when he heard Sadie's voice pipe up; looking up at her, he frowned a moment and turned up his brow. He stared for some time, working it in his head before nodding with a sudden up turn in both brows, "RIGHT! Yes, of course of course... come in come in."
It was obvious Peter'd forgotten about the tutoring; likely because his mind was always involved in science, nerdy things, or the potions themselves. He put the cauldron down and looked around before wiping his hands onto his pants, opened a drawer, and pulled out a pen and some paper. He motioned for her to pull a chair up to the desk.
"Right, so uh... okay, what is it that you need to know?"