Performer places the small cube in the box and closes the doors. He tilts the box so that the cube slides over to the other side. Opening the door on the side where he placed the cube, he announces that it has disappeared. This will draw a laugh, because everyone heard it slide over to the other side. This is repeated over and over until someone says to open all doors at once. This is done and the box is shown to be empty. The cube has vanished and may be produced from the pocket.