Ninh - N-Box

CHANGE the LOCATION of the two CARDS SIGNED very CONVINCINGLY.
Both you and your spectator initial selected cards. Your card is placedin the card box and their card is placed in the middle of the pack. 

Amagical gesture is made and it is revealed that an impossibletransposition has taken place. Now your initialed card is in the middleof the pack and their initialed card is in the box.
N-Box uses several principles as well as a gimmick to create a veryfooling routine. More than anything you are learning a technique thatallows you to do an impossible transposition with initialed cards.
The technique used for the N-Box effect will take practice but it is possible to learn quickly.