Million Dollar Mystery (card trick)
- See also: Million Dollar Mystery (stage illusion).
Million Dollar Mystery was a card trick created and marketed by Theodore DeLand in which a spectator just thinks of one playing card and after showing several boards with playing cards pictured on each and asking answers "yes" or "no" as to which board has their card, the performer divines the chosen card.
Based on the Age Cards effect,
A "modern version" was released in 1936 by Herman Hanson.