The Boxcar Children love exploring the train, watching the beautiful scenery from the observation car, and eating in the dining car. But the train ride gets really interesting when they meet a young woman who has had something very valuable stolen from her.
While at the beach for the summer, Harriet ponders her own beliefs after encountering a religious fanatic and reveals the author of mysterious notes that appear all over town.
When Rebecca gets over the measles, she is able to explain a mystery that has been puzzling her friends, Tommy, Luis, Mei-Li, Jennie, and Derek, who call themselves the Screech Owls.
