First Edition. Hubin listed mystery novel of a "colossal swindling scheme. Anthony Bayliss, a famous American novelist, entered the ballroom of the Casino at Monte Carlo and paused to look at the gay throng of masqueraders. Suddenly, a masked lady in white took his arm, slipped a note into his hand, and shortly after disappeared". Very Good, sunning to edges, lower page edge with tiny brown tinged indent, in Very Good plus attractive dustjacket, nicked spine ends, some darkening to rear panel.