Effect: The magician shows one red-back and three blue-back jumbo cards. He explains that the red one is the same as one of the blues. He shows the faces of the cards: two aces, a nine, and a king. Of course, the spectators assume the red-back card is an ace, but the magician shows it is really a king and that there are now two kings in the packet. When he turns the second king over, its back is blank instead of blue, and it is marked with a large black X.
