We all know that a magician does not really depend on "magic" to perform his tricks, but on his ability to act at great speed. (26) , this does not prevent us from (27) watching a magician produce rabbits from a hat. One of the greatest magician of all time was Harry Houdini, who mastered the art of (28) He could (29) himself from the tight test knots in seconds. (30) no one really knows how he did this, there is no doubt (31) he had made a close (32) of every type of lock ever invented. He liked to carry a small steel needle like toolstrapped to his leg and he used this in (33) of a key. Houdini once asked the Chicago police to (34) him in prison. They (35) him in chains and locked him up, but he freed himself (36) an instant. The police (37) him of having used a tool and locked him up again. This time he wore no clothes and there were chains (27) his neck, waist, wrists, and legs; but he again escaped in a few minutes. Houdini had probably hidden his "needle" in a wax like (39) and dropped it on the floor in the (15) ． (16) he went past, he stepped on it so that it stuck (40) the bottom of his foot. Once he was heavily chained up and enclosed in an empty wooden chest, the lid of (41) was nailed down. The chest was dropped (42) the sea in New York harbor. Just in one minute Houdini had swum (43) the surface.