Ever since my fortunate-or shall I say unfortunate?-connection with that famous case of murder in Gramercy Park, I have had it intimated to me by many of my friends-and by some who were not my friends-that no woman who had met with such success as myself in detective work would ever be satisfied with a single display of her powers, and that sooner or later I would find myself again at work upon some other case of striking peculiarities.