While staying at the Winding River Lodge, the Alden siblings investigate tales of a zombie haunting a lake in the woods.

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 Boxcar children investigate when ice cream and other items start disappearing from their favorite ice cream parlor.

"People say nothing interesting happens in the village of Port Elizabeth but, on a visit there, the Boxcar Children find a big mystery at the schoolhouse. Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading by themselves with a Boxcar Children classic."--Amazon.

The Aldens visit Peggy and Doc Firmin's sheep farm and get a behind-the-scenes look at a teddy bear workshop. When a rare and valuable teddy bear disappears, it's up to the Alden children to track down the thief.

The children are staying at the home of a famous inventor who was known for her one-of-a-kind clocks. All the clocks make noise especially at midnight, when there are enough chimes, gongs, and clangs to wake the whole house up! But the clocks aren't the only sound in the house at midnight. Someone or something is making a mysterious tapping sound. Who could be inventing trouble in the old house?

When an elderly friend is injured, the Alden children offer to help him with his window-washing business in their small town of Greenfield and agree to help him solve a riddle that has arrived in a mysterious invitation.

At the same time that the Alden children's efforts to raise money for a new hospital wing are being sabotaged by nasty tricks, they find their attempts to befriend the new girl Beth frustrated by her strange behavior.

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.

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.