Back to her previous theory, she decided to think of places that everyone used and went to so that they would get warmer and people would appreciate the effort and all. Corridors! Everyone went through corridors. So the charm there would hopefully be helpful and all.

From the entrance she made her ways to the staircases and let those decide to which level she was going since she couldn't decide herself. Surely all corridors were equally walked whether it was to go to classes or other rooms or places. And she needed one last thing to think of so the staircases got to make the decision for her. They liked to take people where they did not intend to go anywhere.

Once they stopped, she found herself on the sixth floor. Shrugging she walked to the corridor and kept walking until she got half way through it then turned to one of the walls. "Caelum Saepio," Infinity sign!

Turning around to go somewhere else, Cassia thought why not cast the spell on both walls. Would be more effective. Turning to the other side she repeated the movement and spoke, "Caelum Saepio," Once she saw the little bit of fog she was satisfied with her work and turned to leave.