From Alan Warner:The performer shows a spectator the perfectly plain reverse side of four wooden tablets and explains (without turning the tablets over) that on the other side of each of these tablets there is a symbol which is similar except for its colour. The spectator is then invited to make a selection from the tablets and given an opportunity to change his mind if he so desires. The chosen tablet, which the performer keeps face-down, is placed beside a small wooden box that is standing on his table. Picking up the box, the performer removes the lid and then replaces the box back on the table in front of the spectator’s chosen tablet.In the bottom of the box there is a small square tablet, in the centre of which is a coloured spot. ‘The Question is,’ says the performer, ‘what connection is there between the coloured spot in the box and the tablet you have chosen?’ The performer then turns the chosen tablet over to reveal (a) that the coloured symbol on it is the top half of a question mark which has now been completed by the spot in the box, and (b) that BOTH HALVES OF THE QUESTION MARK MATCH IN COLOUR!‘The question is,’ the performer now says to the spectator, ‘do you believe that the symbols on the other three tablets are in different colours and that you have achieved a magical colour match with the spot in the box, or are they all the same colour as the one you have selected? The performer then turns the three discarded tablets over to reveal that THE SYMBOL ON EACH ONE OF THEM IS A DIFFERENT COLOUR!THE SPECTATOR CAN CHANGE HIS TABLET SELECTION AND YET THE CHOSEN SYMBOL AND THE SPOT IN THE BOX WILL ALWAYS MATCH IN COLOUR.The box is handcrafted in teak and measures approximately 5 x 5 cms. The wooden tablets, measuring 5 x 3.8 cms, have a coloured lacquered symbol representing the top half of a question mark cut into them.