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
Blue Larkspur hard all winter in Lexington. In his first race as a three-year-old, he beat Clyde Van Dusen, a gelded son of Man o' War. On Derby Day, however, the track was deep and muddy. Because Thompson was suffering from appendicitis, an apprentice trainer prepared Blue Larkspur for the race and neglected to have him shod in "stickers" (special shoes for slippery mud). Blue Larkspur struggled to finish fourth, defeated by Clyde Van Dusen. Later in his 3-year-old season, however, Blue Larkspur convincingly won the one-mile Withers Stakes. Ridden by Mack Garner, he closed with a rush. He also took the