The Password to Larkspur Lane delphiniums when a mysterious carrier pigeon lands in her yard. Nancy contacts the registry for the carrier pigeon. Meanwhile, housekeeper Hannah Gruen takes a fall and must be treated at the local orthopedist's office. Her attending physician, Dr. Spires, confides to Carson Drew and Nancy that he was forced to tend an elderly woman for her shoulder under peculiar circumstances: the driver of a car blindfolded him when they drove him there, so he wouldn't be able to guess her location, but the doctor believes their destination might have been someplace called Larkspur Lane. Events led him to believe the
Redwood High School (Larkspur, California) schools from Sausalito to Belvedere to Ross, voters chose to create a new school, and chosen for its site was the marshy area that extended east from the centrally located town of Larkspur to U.S. Route 101, an area that townspeople had called "the slough" since Larkspur was settled. The importance of wetlands was under-appreciated, and the land was seen as "waste." Beginning in early 1957, a large section of the marsh was flattened and filled, two roads were cut through from Magnolia Avenue out to the new school, and a playing field and parking lot were included. The first