Theta Waves-David Devlin ebook
A Dazzling Effect for Any Occasion!
A packet of eight cards is shown. All eight cards are different on the face. The backs however, are not shown. It is explained to the spectator that there is one card & one card only that's back is different than the others. The spectator decides on one card. That card is held by the spectator, while you show the backs of the unselected cards. Those seven cards have blue backs. The spectator then turns over his selection, & it has a red back! All of the cards can be given away to the spectators.