As in a Mirror Darkly

Here is one of those infrequent ideas well worth the evening's labor to make up. Effect: The performer writes a prediction on a slip of paper and drops it into a hat. He next introduces a deck of cards, shuffles them and asks a spectator to think of any card. Fanning the deck before the spectator, he is asked to point to his mentally chosen card.

This card is deliberately withdrawn and droppe d, face down, into the hat with the prediction slip. When the name of the card is announced, a second spectator removes the card and the prediction slip from the hat and finds that they both correspond. The performer has, therefore, succeeded in predicting a card that was merely thought of!