Cards Know

A spectator selects a card which is left on the table unknown to everybody. The magician says the cards know which one is missing from the deck, and they will tell everyone. The only thing the magician must do is snap his fingers to make them "speak". He proceed to snap his fingers and spread the cards to show a card magically appearing face down in the middle. This process is repeated three times and the ace, two and three of the same suit appear. However, the four does not reveal itself when called, so the magician flips the deck over and snaps his fingers many times, spreading the deck to show all cards from 5 to King magically face up. Finally, the card which was selected in the beginning is shown to be the missing four.