Audrey Rose Wadsworth and Thomas Cresswell have landed in America, a bold, brash land unlike the genteel streets of London. When the two attend the spectacular World's Fair, they find the once-in-a-lifetime event tainted with reports of missing people and unsolved murders. Determined to help, Audrey Rose and Thomas begin their investigations, only to find themselves facing a serial killer unlike any they've encountered before. Identifying him is one thing, but capturing him---and getting dangerously lost in the infamous Murder Hotel he constructed as a terrifying torture device---is another. Will Audrey Rose and Thomas see their last mystery to the end---together and in love---or will their fortunes finally run out when their most depraved adversary makes one final, devastating kill?