Relates the exploits of the four Alden children as they locate a missing man. The Boxcar children travel to Maine, take canoes into the wilderness and live in a house exactly like the one on Surprise Island, except the Maine house is brown, not yellow. They then untangle the mystery of the two houses.

A family starts out on a one-day mountain climbing excursion that becomes very exciting. In fact, it becomes an adventure for the former "boxcar" family. They unearth some mysteries and have a fine time in the process.

"On a farm, the Aldens find their oldest mystery yet! Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic."--

"Hidden behind the wall of their guest room, a mysterious journal leads the Aldens on a search for a valuable collection"--

While on a bicycle trip to their aunt's farm, the four Aldens help solve a mystery.

Henry and Benny are suspects when a valuable vase disappears from the local department store where they are working for the summer.

A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are the ingredients for the Aldens' latest mystery.

When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings.

The Alden children are thrilled when a famous orchestra comes to their town to perform, and when an original Mozart score turns up missing, they solve the mystery of its disappearance.

Everyone wants to score points for their cabin. But are some of the other campers trying too hard to win? When the camp flag goes missing and contest ideas are stolen, it looks as if someone isn't playing fair. Can the Boxcar Children prove there's cheating going on at the Camp Seagull Opympics?