The magician asks a spectator to pick a card from a deck and sign it. The card is then lost inside the deck. Now the magician draws with a marker, a black line on the back of the card at the top of the deck. A magic gesture, and the newly designed line visibly disappears! By browsing the cards you will see that the line magically has been transferred to one card in the middle of the deck ... just on the first signed by the spectator!
 
A stunning effect!
 
• The ingenious gimmick is created with Bicycle cards.
• For increased visibility of the black line, gimmick paper is supplied with a red back.
• A link is provided with detailed Red Dragon video instructions.