 | Nancy's Mysterious Letter | Hardback |
 | The Clue In The Diary | Hardback |
 | The Clue in the Diary | Hardback |
 | The Sign of the Twisted Candles | Hardback |
 | The Haunted Bridge | Hardback |
 | The Whispering Statue | Hardback |
 | The Whispering Statue | Hardback |
 | The Clue in the Jewel Box | Hardback |
 | The Clue in the Crumbling Wall | Hardback |
 | The Mystery of the Tolling Bell | Hardback |
| The Mystery of the Tolling Bell | Hardback |
 | The Clue in the Old Album | Hardback |
 | The Clue of the Leaning Chimney | Hardback |
 | The Secret of the Wooden Lady | Hardback |
 | The Clue of the Black Keys | Hardback |
 | The Mystery at the Ski Jump | Hardback |
 | The Clue of the Velvet Mask | Hardback |
 | The Ringmaster's Secret | Hardback |
 | The Scarlet Slipper Mystery | Hardback |
 | The Scarlet Slipper Mystery | Hardback |
 | The Witch Tree Symbol | Hardback |
 | The Hidden Window Mystery | Hardback |
 | The Haunted Showboat | Hardback |
 | The Hidden Staircase | Hardback |
 | The Secret of the Golden Pavilion | Hardback |
 | The Bungalow Mystery | Hardback |
 | The Clue in the Old Stagecoach | Hardback |
 | The Mystery of the Fire Dragon | Hardback |
 | The Clue in the Diary | Hardback |
 | The Clue of the Broken Locket | Hardback |
 | The Phantom of Pine Hill | Hardback |
 | The Secret of Shadow Ranch | Hardback |
 | The Clue in the Cipher | Hardback |
 | Mystery at the Ski Jump | Hardback |
 | The Mysterious Mannequin | Hardback |
 | The Crooked Banister | Hardback |
 | The Haunted Bridge | Hardback |
 | The Secret of Mirror Bay | Hardback |
 | The Mystery of the Glowing Eye | Hardback |
 | The Hidden Window Mystery | Hardback |
 | The Witch Tree Symbol | Hardback |
 | Mystery of the Glowing Eye The Secret of the Forgotten City | Hardback |
 | The Bungalow Mystery / The Mystery at Lilac Inn | Hardback |
 | The Clue in the Crumbling Wall | Hardback |
| The Clue in the Jewel Box | Hardback |
 | The Clue in the Jewel Box The Secret in the Old Attic | Hardback |
 | The Clue in the Old Album | Hardback |
 | The Clue in the Old Stagecoach The Mystery of the Fire Dragon | Hardback |
 | The Clue of the Dancing Puppet The Moonstone Castle Mystery | Hardback |
 | The Clue of the Whistling Bagpipes The Phantom of Pine Hill | Hardback |
 | The Ghost of Blackwood Hall The Clue of the Leaning Chimney | Hardback |
 | The Haunted Bridge The Clue of the Tapping Heels | Hardback |
 | The Haunted Showboat The Secret of the Golden Pavillion | Hardback |
 | The Mysterious Mannequin The Crooked Banister | Hardback |
 | The Mystery at the Ski Jump The Clue of the Velvet Mask | Hardback |
 | The Mystery of the 99 Steps The Clue in the Crossword Cipher | Hardback |
 | The Mystery of the Moss-Covered Mansion The Quest of the Missing Map | Hardback |
 | The Ringmaster's Secret The Scarlet Slipper Mystery | Hardback |
 | The Secret of Mirror Bay The Double Jinx Mystery | Hardback |
 | The Secret of the Old Clock The Hidden Staircase | Hardback |
 | The Secret of the Wooden Lady The Clue of the Black Keys | Hardback |
 | The Spider Sapphire Mystery The Invisible Intruder | Hardback |
 | The Strange Message in the Parchment | Hardback |
 | The Witch Tree Symbol The Hidden Window Mystery | Hardback |
 | The Bungalow Mystery | Hardback |
 | The Clue Of The Dancing Puppet | |
