On the magician's table, there is a box; its shape is similar to a cube. On that box, a cage is seen. The size of the cage is exactly the same size as the box. The magician puts two doves inside the cage from the door at the top and then puts the cage inside the box. He then picks up the box and holds two sides of it and turns it several times. He returns the box to the table again and opens its door. All of a sudden, the audience sees that the dove cage has been changed into two rabbits or... At last, the magician shows the cage to be quite empty.