Once again the Hatford brothers and the Malloy sisters find themselves pitted against each other when embarrassing pictures of the boys turn up in the girls' basement, and the boys try to figure out how to get them back.
After several bombs go off around town, eleven-year-old Bernie Magruder becomes suspicious of various members of his family, causing confusion in Officer Feeney's investigation and around the hotel that his parents run.
The Depression causes Ruth's dream of college and a teaching career to be no longer certain, but at the same time it enables her to grow as a person as she encounters others in difficult situations.