A spectator selects a card from a punched Skat deck. Then, all cards are secured with a solid brass U-lock.

• The key is placed in an envelope, which a second spectator takes into custody.
• The spectator now searches for his card in the locked game.
• To his great surprise, he discovers that his card is missing from the game!
• If the other spectator now takes the key out of the envelope... the missing card is hanging on its key ring!!!
  
  In conjunction with our AT-ENVELOPES (see page 43 Harris News, Order No. 118), the second spectator can even throw the key himself - after the cards have been "locked" - into an envelope that he has checked to be empty.
  
  > Nevertheless, during the course of the performance the spectator card will be added to the key!!!
  
  You receive:
  The punched Skat game, two gimmick cards (so you can vary the game), an envelope made of strong paper, the solid brass lock with keys, and detailed instructions.