Mystery Train (Nancy Drew/Hardy Boys)

Mystery Train is a Nancy Drew and Hardy Boys Supermystery novel. The Nancy Drew game Last train to Blue Moon Canyon is based on the book.

Plot

Nancy, Frank, Joe, and Bess are all on the trail of the Comstock Diamond Case, an unsolved theft case, that has worked its way to the interests of a team of "professionals", with a "missing" reward of $25,000. The first step in solving the crime is to recreate the trail of the culprit, boarding a train from Chicago to San Francisco. But the case turns deadly when a shadowy suspect starts to sabotage the train. It is up to the trio to find suspects, solve the case, and bring the real cold-hearted criminal to justice. They face, a kidnapper, a thief, and a saboteur.