The Vault - Four X Four by Harry Lorayne
The ultimate mind reading lie detector or poker tell demonstration!
Read the minds of four spectators instantly! 

This is an incredible routine from Harry Lorayne's book, REPUTATION MAKERS. 

Effect: Even though four spectators merely THINK of a card in their own pile of cards, AND they shuffle those cards, the magician is able to name all four thought-of cards! 

Self-working. 

Use a borrowed, shuffled deck. 

Easy to do. 

Ingenious principle. 

Download the video today!