The ice cream mystery: the Aldens help out at the Greenfield Ice Cream Barn and while learning to make ice cream and create new flavors, they help solve a mystery before the Barn gets shut down. The midnight mystery: Tte 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...

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 Boxcar children have dinner at a Chinese restaurant and get a handwritten riddle in a fortune cookie! One riddle leads to another, and the children wonder who is leaving them the cookie clues, and why? Henry, Jessie, Violet, and Benny break into a mystery after cracking open a cookie! When the Aldens go to dinner at a local Chinese restaurant, they find a surprise in Benny's fortune cookie--a handwritten riddle! One cookie leads to another,...

The Alden children suspect that the other guests are somehow involved when things begin to disappear at the bed and breakfast where they are staying in Washington, D.C.

The Aldens visit an old camp in Quebec, Canada, and begin to suspect that someone or something is trying to scare them away from the place.