But before the express reaches its first station stop, one of the greedy McGowans has turned up dead. Is it murder? Daisy's willing to bet her first-class ticket on it. After all, the victim is the appointed heir-to-be-and she's sharing the rails with an entire family of suspects who have everything to gain by his death. Now, with her precocious young charge in tow, Daisy is determined to unmask the murdererous passenger-and reach her destination alive...