Peruvian Instant Darkness Powder

Peruvian Instant Darkness Powder is a magical item created by Fred and George Weasley and sold by Weasleys' Wizard Wheezes. This darkness powder creates darkness when used, allowing the user to escape. The Ministry of Magic expressed an interest in purchasing large amounts of this, due to its defensive capabilities. Draco Malfoy used this when he allowed several Death Eaters into Hogwarts.