Effect

The magician removes a deck from its case and a spectator freely picks a card. He signs on the face as an evidence of what happens later. The magician holds the returned card and the empty card case and asks the audience to come by the window. The window is opened a little and the card case is held outside. Then the magician slowly pushes the spectator's card against the inside of the window. After a while, he lets his hand off from the card to show that it is stuck on the window. To the amazed audience, the magician tells to look the card closer. The card is now stuck to the outside of the window! It has apparently gone through the window and stuck to the other side! The magician says he is going to check if it is the spectator's card and is not switched, and then he scrapes the card with the card case. The audience sees the card visually slides into the case that is held outside. The card is kept in the case so the magician does not touch the card. The case is carried into the room and