Vanish into thin air
Vanish into thin air
Meanings
To disappear completely in a kind of mysterious way
Examples
Where the heck is my cell phone? It was here on the table, it can't just have vanished into thin air 
Dove caspita è finito il mio cellulare? Era qui, sul tavolo, e non può essere sparito nel nullaMiss Marple said that she had lunch with this lady in the dining car, but then she like vanished into thin air
Miss Marple dice che ha pranzato con la signora nella carrozza ristorante, ma poi è come svanita nel nullaOrigin
Shakespeare wrote in Othello (1604):
Clown: Then put up your pipes in your bag, for I'll away. Go; vanish into air; away!
And in The Tempest (1610):
Prospero: These our actors, as I foretold you, were all spirits and are melted into air, into thin air
Today's phrase is clearly an adaptation of Shakespeare's words