When the rodeo comes to Bayport, Joe and Frank catch the ranch hands trying to steal a prize horse. After the boys stop the theft, they're recruited to help drive the cattle back to the ranch. However, mysterious things continue to happen and the Hardy boys have to solve the mystery.

Brother detectives Frank and Joe go full-steam ahead to find the truth in the twenty-third book in the thrilling Hardy Boys Adventures series. The Hardys and some of their friends hop aboard an old train that’s been restored and turned into a murder mystery experience. A cast of actors will perform an immersive theatrical production while passengers dine in style, assume roles in the game, and ultimately try their hand at solving the case. This should be a cakewalk for Joe and Frank! The production is a mess. The actors are lousy, fumbling their lines and spelling out obvious clues. At least the food is pretty good. But just as the Hardy Boys are trying to make the most of a disappointing situation, one of the cast members goes missing. At first, the audience thinks that the show is taking a turn for the better, but it quickly becomes clear that this is not part of the act. For the Hardys, the mystery has gone from good fun to deadly serious. And trapped on a train full of people who aren’t who they say they are, everyone is a suspect. Will Frank and Joe be able to figure out how someone can vanish into thin air on a moving train before this case goes completely off the rails?

A buried secret becomes a big problem for Frank and Joe in the twenty-fifth book in the thrilling Hardy Boys Adventures series. Frank and Joe are on a history club trip to New York City, and their first stop is the Prohibition Museum where they’ll hear about how smugglers building getaway vehicles led to the rise of modern stock car racing. During a tour of damp escape tunnels beneath the museum, Frank slips and breaks a wall panel with his elbow, revealing a hidden compartment containing documents from the 1920s! The documents reveal that The Gilded Top Hat—the speakeasy which later became the Prohibition Museum—wasn’t actually owned by the Faccini brothers who were arrested for its bootlegging operations. The museum curator is eager to investigate this lead into the speakeasy’s history, and never ones to turn down a good case, Frank and Joe volunteer to help out. But before long, someone steals the documents and sends the boys warnings to stop digging into the past. Can Frank and Joe uncover the truth before it’s buried for another hundred years—and the boys along with it?

The Hardy brothers investigate after reports of a beast attacking people. Is the Bayport Beast real after all?

During their Alaskan vacation, Frank and Joe Hardy help falconer Kate when her beloved peregrine goes missing.