Ariella raised her hand. She put her other hand over her mouth to keep from yawning. This double period was getting boring. "Well, a charm can last from just a few minutes to a lifetime. It depends on the charm, doesn't it? Charms generally last for longer than other spells, though. For example, the Fidelius charm can last until the secret keeper dies and the levitation charm lasts until the user puts his or her wand down." Ariella paused. "Something that has been charmed for a long time can be referred to as bewitched, right?"