Jim Qwilleran and his Siamese sleuths, Koko and Yum Yum, investigate the disappearance of a wealthy railroad buff--and alleged multimillion-dollar embezzler--a case that becomes complicated by red herrings, a tragic train wreck, and murder at a railroad tavern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .