A section of the wall, huh? Toby looked around the classroom for a moment, trying to decide just where he would work. Of course, he was right by a window, and so it made sense to cast on one of the walls between the windows. Still, what made sense was not necessarily always what Toby did.

He had that thought in his mind, the one about how heat rises. He glanced from the wall of windows to the ceiling, and then at Professor Fuller. Surely he'd be okay with casting on the ceiling, seeing as everyone else was going to be doing the walls. Because once the walls stopped letting heat out, the heat would rise and escape that way. And the ceiling could kind of be considered a wall, after all. Toby decided that that had been a Very Good Idea.

Pausing only to scribbled down the homework assignment, Toby got up out of his seat and out of the way of the desks a little, so he was leaning against the cold cold window. He pointed his wand up at the space of ceiling over his desk.

"Caelum Saepio!" the Hufflepuff cast, and accompanied this with the swooshy infinity sign style wand movement. He had no way of knowing if it had worked or not, but he had another two goes after all.

Okay, no, the window was too cold to be leaning against, so Tobias ceased that at once.

"Professor," he piped up, glancing behind him and to the window. "Can this spell be used on windows, too? Just out of curiosity." Seemed logical, no?