Houdini's last magic trick APP
The magician (you) shows photos of Houdini taken 100 years ago. He asks the spectator to look into Houdini's eyes and choose a card (a totally free selection). The chosen card is named, and the magician shows that in the same picture, Houdini's brother is holding a single card which is the chosen card.
The application is full of information about Houdini, and looks like an ordinary app.
The app contains instructions how to perform the magic.