Revealing a thought-of card is a classic plot in card magic. With The Mental Marvel: A Lost Gem from Clarke The Senator Crandall, you can now perform an incredible routine at a moment's notice! The performer shows one specially printed card with rows of multiple cards printed on the face. After the spectator thinks of ANY one of the cards--never saying it aloud--the performer can devine the merely thought-of card. Includes instructional booklet and special Bicycle Backed gimmick cards. Also included is an alternate ending that cannot be reverse-engineered. Highly Recommended!