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
Larkspur, California north as Charles M. Schulz–Sonoma County Airport and eventually extend to Cloverdale Depot. The North Pacific Coast Railroad (later absorbed by the Northwestern Pacific Railroad) provided interurban services to Larkspur until the 1930s. Larkspur-Corte Madera School District serves Larkspur for elementary and middle school. Neil Cummins Elementary School and Hall Middle School serve both Corte Madera and Larkspur. Neil Cummins serves grades K to 5, while Hall serves grades 6 to 8. The former San Clemente Elementary School has been reopened as The Cove School. In lieu of extensive retrofit to the existing structures, new buildings have been built on