Jessie and Benny are participating in the Great Greenfield Bake-Off, a local baking competition for kids. But ingredients get mixed up during the competition and then the power goes out. Is someone trying to put an end to the contest?

The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.

"The Aldens try out a Halloween escape room. The puzzle are fun to solve. But when eerie events start scaring people away, the children find a much bigger case to crack." --

The Aldens are excited to learn about beekeeping. But when equipment goes missing, they have more than honey to harvest -- they have a mystery to solve!

The Alden children have an adventure as they journey along with the Little North Railroad in two cabooses rented for the summer by their grandfather.

The Alden children are searching for a rare comic book about their favorite superhero, Captain Fantastic. When they finally find the comic, they discover that Captain Fantastic has a real-life enemy. Who would want to sabotage a superhero? The Aldens will need their super power of investigation to catch this comic book culprit!

The Alden children start out on a one-day mountain climbing excursion that becomes very exciting. They unearth some mysteries and some treasure and have a good time in the process.

A local radio station is holding the Great Detective Race, and the Boxcar Children have entered the contest! They solve riddles and search all over town for clues leading to the grand prize. But when some of the clues turn out to be fake, it's clear that someone is playing unfairly! Who could be trying to ruin the race - and why?

The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

"Henry, Jessie, Violet, and Benny are spending the summer on a houseboat! Throughout the journey, the children have the feeling they're being watched-- and they are. Someone wants something on their boat, and he'll stop at nothing to get it. Can the Boxcar Children figure it out what it is before it's too late?"--P. [4] of cover.