Olly had seen the tanks. He hadn't really thought much of them at first. Maybe the professor was redecorating. Getting an aquarium or something. But now he was starting to think that they were important. People were asking questions about what was in them. He couldn't see anything alive in them though. Nothing moving. Nothing visible. He peered closely for a moment before shaking his head and trying to focus on the lesson. Except it wasn't really a lesson. They were just supposed to ask questions but how on earth was he supposed to know what sort of question to ask. It was insane. But since that's what he was supposed to do, he would do it. Olly thought quickly and raised his hand.

"Uhh...professor, what's your favorite spell?" Probably not productive but it was the best he could think of.