The Alden children draw upon their resourcefulness to save the neighborhood firehouse from being torn down, while they also face a series of mysterious incidents connected with it.
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.
A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery.
The Aldens visit Ireland and stay in a beautiful castle that's now a hotel! But the caretaker seems very superstitious, and at night they see a mysterious figure who walks the halls carrying a lantern. Could it be one of the banshees of ancient legend? The Boxcar Children must discover the secret that Duncarraig castle is hiding!.
"The old abandoned school in Silver City is being fixed up as an art center and the Boxcar Children volunteer to help clean up the place. But the other volunteers are scared by the spooky goings-on in the school--doors lock by themselves, and chalkboard messages appear out of nowhere! Will the Aldens find out the secret of the haunted school?"--Provided by publisher.
