Responding to a frantic call from her cousin, Consuelo Vanderbilt, Emma Cross arrives at the Marble House mansion and learns Consuelo's mother, Alva, is forcing her into marriage with the Duke of Marlborough. Her mother has even called in a fortune teller to assure Consuelo of a happy future. But the future is short-lived for the fortune teller, who is found dead by her crystal ball, strangled with a silk scarf. One of the Vanderbilts' maids is taken into police custody, and Consuelo is nowhere to be found. Has she eloped with the beau of her choice-- or is her disappearance connected to the murder?