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 (horse) Derby-winning form in three subsequent races. At the end of June he finished fourth at the Curragh behind the French-trained Tambourine when 9/4 favourite for the Irish Derby. His rider, Scobie Breasley, offered no excuses, saying that Larkspur “could never get in a real blow”. He returned to the Curragh in autumn and started odds-on favourite for the Blandford Stakes, but was narrowly beaten by Sicilian Prince. He was sent to Doncaster for the St Leger, but could finish only sixth of the fifteen runners behind Hethersett. In their book "A Century of Champions", John Randall and Tony Morris rated