Birds...

Alyssa's favorite animals had always been birds, and so the Sixth Floor corridor was one of her favorite places to be. She knew she wasn't supposed to do magic out of class, but it was so dark that the place needed a little light... Alyssa summoned her Patronous, a Crane, with a flick of her wand and watched it fly around with the other ravens and pigeons that could be seen in the corridor.