MENTAL CARD WORK

Remarkable things happen and the audience wonders if the magician is involved in these perplexing events.
MENTAL CARD WORK
By Richard Robinson
One spectator selects a card at random, removes it from the deck and seals it in an envelope. Another spectator selects another card and writes the name of the card on a slip of paper. When the name of the card written on the paper is read aloud it turns out to be missing from the deck. In fact, it is the very card that was previously sealed in the envelope. Mental Card Work uses a variety of dodges, most of which you've probably run into in one place or another, although not necessarily in this combination.
Props & Setup
A deck of cards and one extra card from a similar deck. A note pad, pen or pencil and an envelope. Let's say the extra card is the Nine of Diamonds. The effect begins with the Nine of Diamonds from the deck and the extra duplicate both on top of the deck as the first and second cards. This can be done by having the two Nine of Diamonds in your jacket pocket, placing the deck in your pocket momentarily, then bring the deck back out with the two cards added to the top of the deck.