The Secret of the Old Clock
The Hidden Staircase
The Bungalow Mystery
The Mystery at Lilac Inn
The Secret of Shadow Ranch
The Secret of Red Gate Farm
The Clue in the Diary
Nancy's Mysterious Letter
The Sign of the Twisted Candles
Password to Larkspur Lane
The Clue of the Broken Locket
The Message in the Hollow Oak
The Mystery of the Ivory Charm
The Whispering Statue
The Haunted Bridge
The Clue of the Tapping Heels
The Mystery of the Brass-Bound Trunk
The Mystery of the Moss-covered Mansion
ThE Quest of the Missing Map
The Clue in the Jewel Box
The Secret in the Old Attic
The Clue in the Crumbling Wall
The Mystery of the Toiling Bell
The Clue in the Old Album
The Ghost of Blackwood Hall
The Clue of the Leaning Chimney
The Secret of the Wooden Lady
The Clue of the Black Keys
Mystery at the Ski Jump
The Clue of the Velvet Mask
The Ringmaster's Secret
The Scarlet Slipper Mystery
The Witch Tree Symbol
The Hidden Window Mystery
The Haunted Showboat
The Secret of the Golden Pavilion
The Clue in the Old Stagecoach
The Mystery of the Fire Dragon
The Clue of the Dancing Puppet
The Moonstone Castle Mystery
The Clue of the Whistling Bagpipes
The Phantom of Pine Hill
The Mystery of the 99 Steps
The Clue in the Crossword Cipher
The Spider Sapphire Mystery
The Invisible Intruder
The Mysterious Mannequin
The Crooked Banister
The Secret of Mirror Bay
The Double Jinx Mystery
Mystery of the Glowing Eye
The Secret of the Forgotten City
The Sky Phantom
Strange Message in the Parchment
Mystery of Crocodile Island
The Thirteenth Pearl