[BOOK TEST] The Master Key. London: Martin Breese, 1997. A spectator chooses one of three books, and any word on any freely chosen page from their selected volume. The magician can instantly determine or spell out the chosen word without suspicious fishing and without resorting to many of the usual book test dodges. Incorporates two methods allowing the performer to vary procedures and performances. Includes three books, two in wraps and one in boards, together with the original instruction booklet. Very good condition.