She then sets up the relation of the grimoires she’s studied to Shakespeare’s play.
The attributes of magic used by Prospero are the robe, the wand, and his books on the subject.
He never appears invisible himself, but he repeatedly puts on or off his magic robe, according to whether he has work to do as a magician or an ordinary man.
Water spirits appear in the Naiads and elves of the brooks and streams who are in attendance in the masque of Act IV to "bestow upon the eyes of this young couple some vanity of mine art", said by Prospero to Ariel, Act IV, Sc. The spirits of the air are of the highest type and include Ariel and the divinities he summons, Ceres, Iris, Juno, and the nymphs.
They thunder, Music, Noises, sounds, and sweet airs with which the island abounds, says Caliban.