A spectator selects a card from an ordinary deck. The performer displays a small solid crystal cube, which he explains will condense and focus thought rays, just like a lens focuses light rays. The cube is held between finger and thumb, right under the

Pepper's Ghost was the remarkable Victorian invention which allowed three-dimensional ghosts to walk onstage with actors. A beautiful new edition of "Two Lectures on Theatrical Illusion," Jim's book combines his lectures, "The Science