Using Vanish renders a wizard invisible to the eye. Furthermore, it also removes every trace of his presence and even conceals his smell, making it utterly impossible for anyone to detect him. Mastering this spell is considered the first step towards wizarding excellence.
Vanish is a spell that allows the caster to become invisible and disappear into the shadows. Oliver obtains this spell in the Fairyground from the Fairy Godmother. It is, however, unusable.
