Mystery Books
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Parnell Hall biography
Parnell Hall (born October 31, 1944) is a mystery writer.[1] His works include the Puzzle Lady and the Stanley Hastings series, as well as the screenplay to the 1984 cult classic, C.H.U.D.[2] He has collaborated with Manny Nosowsky for crossword puzzles and with Will Shortz for sudoku puzzles incorporated in Puzzle Lady stories.[3][4] He also has written under the pen name, J.P. Hailey, under which he wrote the Steve Winslow series.
Information source: wikipedia