• The Secret of the Old Clock, 1959
  • The Hidden Staircase, 1959
  • The Bungalow Mystery, 1960
  • The Mystery at Lilac Inn, 1961
  • The Secret of Shadow Ranch, 1965
  • The Secret of Red Gate Farm, 1961
  • The Clue in the Diary, 1962
  • Nancy's Mysterious Letter, 1968
  • The Sign of the Twisted Candles, 1968
  • The Password to Larkspur Lane, 1966
  • The Clue of the Broken Locket, 1965
  • The Message in the Hollow Oak, 1972
  • The Mystery of the Ivory Charm, 1974
  • The Whispering Statue, 1970
  • The Haunted Bridge, 1972
  • The Clue of the Tapping Heels, 1969
  • The Mystery of the Brass Bound Trunk, 1976
  • Mystery of the Moss-Covered Mansion, 1971
  • The Quest of the Missing Map, 1969
  • The Clue in the Jewel Box, 1972
  • The Secret in the Old Attic, 1970
  • The Clue in the Crumbling Wall, 1973
  • The Mystery of the Tolling Bell, 1973
  • The Clue in the Old Album, 1977
  • The Ghost of Blackwood Hall, 1967
  • The Clue of the Leaning Chimney, 1967
  • The Secret of the Wooden Lady, 1967
  • The Clue of the Black Keys, 1968
  • The Mystery at the Ski Jump, 1968
  • The Clue of the Velvet Mask, 1969
  • The Ringmaster's Secret, 1974
  • The Scarlet Slipper Mystery, 1974
  • The Witch Tree Symbol, 1975
  • The Hidden Window Mystery, 1975
  • The Haunted Showboat, 1957
  • The Secret of the Golden Pavilion, 1959
  • The Clue in the Old Stagecoach, 1960
  • The Mystery of the Fire Dragon, 1961
  • The Clue of the Dancing Puppet, 1962
  • The Moonstone Castle Mystery, 1963
  • The Clue of the Whistling Bagpipes, 1964
  • The Phantom of Pine Hill, 1965
  • The Mystery of the 99 Steps, 1966
  • The Clue in the Crossword Cipher, 1967
  • The Spider Sapphire Mystery, 1968
  • The Invisible Intruder, 1969
  • The Mysterious Mannequin, 1970
  • The Crooked Banister, 1971
  • The Secret of Mirror Bay, 1972
  • The Double Jinx Mystery, 1973
  • Mystery of the Glowing Eye, 1974
  • The Secret of the Forgotten City, 1975
  • The Sky Phantom, 1976
  • The Strange Message in the Parchment, 1977
  • Mystery of Crocodile Island, 1978
  • The Thirteenth Pearl, 1979
sep 22 2013 ∞
oct 18 2013 +