Four children mysteriously appear in a new town. No one knows where they came from or why they soon disappeared again in the middle of the night. Discover the origins of the scrappy and industrious siblings Henry, Jessie, Violet, and Benny in this reprint of the original text of the 1924 classic so beloved that it inspired over 150 sequels and counting. with additional clues not found in later editions that shed light onto what happened to the parents of the amateur sleuths and why they chose to make their new home in a boxcar in the woods.