A fine showcase for a rare and difficult form of the mystery story; fun to read and made more fun by Penzler's lively introduction. Contains: Unreasonable doubt -- Stanley Ellin A dilemma -- S. Weir Mitchell [Nunc Dimittis](https://openlibrary.org/works/OL20504524W/Nunc_Dimittis) -- Roald Dahl The lady, or the tiger? -- Frank Stockton The discourager of hesitancy -- Frank Stockton The lady and the tiger -- Jack Moffitt The blind spot -- Barry Perowne The mysterious card -- Cleveland Moffett The mysterious card unveiled -- Cleveland Moffett Karmesin and the meter -- Gerald Kersh One hundred in the dark -- Owen Johnson The whole town's sleeping -- Ray Bradbury At midnight, in the month of June -- Ray Bradbury Thimble, thimble -- O. Henry The Gioconda smile -- Aldous Huxley Tea for two -- Laurie York Erskine The lady and the dragon -- Peter Godfrey A medieval romance -- Mark Twain The moment of decision -- Stanley Ellin.