Chamber Of Secrets
Prisoner Of Azkaban
Goblet Of Fire
Order Of The Phoenix
On October 31, 1991, Filius Flitwick, head of Ravenclaw house, taught his students, among them, Harry Potter, Ron Weasley, Hermione Granger, Draco Malfoy, Vincent Crabbe, Gregory Goyle, Susan Bones, Terry Boot, and Hannah Abbott.
Ron tried to levitate 4 boxes with his wand. He wasn't aiming right, however, and unknowingly aimes to the heads of Boot, Bones, and Abbott. He twirled his wand around, and accidentally levitated them, leaving them hanging by two chandeliers. Ron, Harry and Hermione had to help them down from the chandeliers. This obviously brought gales of laughter to the Slytherins, including Malfoy.
When cast, Wingardium Leviosa is amethyst purple.