Drama / Characters: 17 Male, 3 Female Scenery: 5 interior Spaces Incriminating letters written by a young European prince to the English girl he betrayed are in the hands of the dead girl's sister. She is in the clutches of a nefarious man. All this and Moriarty and Dr. Watson too. "A prime evening of entertainment." N.Y. Daily News. "Constant stage magic to delight the audience." Women's Wear Daily. "A theatrical triumph ...one of the jolliest treats of the season." Christian Science Monitor. "The most enjoyable show in town ...a great evening in the theater. I ...might find it difficult to like someone who did not love it." N.Y. Times.