While vacationing at a friend's country home, the four Alden siblings try to find a long-missing, priceless brooch and investigate the existence of a ghostly stream.

The Boxcar Children investigate when they visit the house of a friend in Wisconsin and hear the bell of the runaway ghost in the night.

The Alden children visit a family friend at his apple orchard which is rumored to be haunted, but instead of a ghost they find that some of the family's valuable antiques are being stolen.