A classic effect with a most surprising ending.

Just imagine that you had the abilities of a cardsharper. You show three blank cards and a money card. Even though you handle and mix the cards slowly and in the cleanest, fairest manner, the money card appears in the most unexpected place. After you have conditioned your spectators by repeating the effect twice, you get ready for the unbelievable climax. Suddenly, you show three money cards and only one blank card. The four cards may be examined at the end!