Mystery on the Mayhem Express:

Brother detectives Frank and Joe go full-steam ahead to find the truth in the 23rd 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?

As the Falcon Flies:

Frank and Joe circle a new case in the wilds of Alaska in the 24th book in the thrilling Hardy Boys Adventures series.

Frank and Joe Hardy are excited when their parents’ friends, the Adenshaws, invite them to come visit their home in Alaska. The brothers will have the perfect guide to explore the beautiful landscape the area is known for — their hosts’ daughter, Kate. During the visit, Kate introduces the Hardys to her beloved peregrine falcon.

There’s a major falconry competition coming up in the United Arab Emirates, and even though Kate can’t compete, she — like so many others in the falconry world — is eagerly looking forward to the event, which has millions riding on it. One California falconer even offered to buy Kate’s falcon so he could enter it in the contest. When Kate’s peregrine goes missing, it looks like the Californian or someone else may have turned criminal in their ruthless desire to win. Kate is devastated, and the Hardy boys have to figure out if her falcon could have flown off…or if it was stolen.

Frank and Joe may not know much about birds of prey, but they do know how to solve a mystery. But can they soar to success?