Similar to the Invisible Deck, but with an added kicker!
You place a deck of cards down in full view, and have a spectator freely name ANY card they can think of! NO FORCES!
You then take the deck and spread through it - only ONE card is FACE UP! It is their FREELY NAMED CARD!
Not only that, you pull the card out and turn it over - IT HAS A DIFFERENT COLOUR BACK!
DC Comics The All-Star Squadron #24 August 1983 First App Brainwave
1960 The Brain Wave 1st Printing 1st ED POUL ANDERSON Ballantine 393K VINTAGE
1978 Carrie Snodgrass brainwave scene "The Fury" Vintage Glossy Press Photo