From Sierra's standpoint, the professor was talking, but there was nothing coming out but a foreign language. That's about how well she understood anything that was currently being discussed. She watched as Hadley cast Arithmos Revelio. That part Sierra knew. It was just this whole breaking up and interpreting part that she was pretty much clueless about.

Sierra copied down the numbers and began the process of staring at them. Maybe if she did so long enough, the answer would just fall out the sky. Heh. After a while, though, she raised her hand. "Professor?" she asked. "Can we work with a partner by any chance?" If so, she so called dibs on Kurumi Hollingberry!