Aqua looks around and notice that more people have entered. She lets out a small sigh and uncaps the horn on her hip. She pulls it out and begins to twirl it around her fingers, a trick that she taught herself when she first got her powers. She looks around and notices a shadowy boy in the back of the class. She faces forward, not want to look at him. The water slips between her fingers and down her wrist as she moves it over to her other hand. She smiles and leans up against the wall. 

Suddenly, the wall gets very cold and she jerks back, looking at her. The water has disappeared from her hand and is now across the entire wall. The entire wall, from the front of the room to the back, is completely frozen. She swallows and tries to get it back, but it stays frozen. Little ice crystals appear on the windows and she bites the insides of her cheeks. This is not a good way to start off the class. She sighs and waves her hand over the frozen section closest to her. It is going to take awhile, but she could at least melt it off the wall, without, hopefully, melting the wall itself.