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in: Article stubs, Books, Books by Thea Stilton, Thea Stilton series

The Secret of the Old Castle

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The Secret of the Old Castle is the tenth book of the Thea Stilton series.

Description[]

A mystery in Scotland!

When the Thea Sisters' friend Bridget returns to Scotland for a family emergency, the five mice offer to help. And when Bridget goes missing, they have to rush to Scotland to help find her! Along the way, the Thea Sisters encounter Celtic legends, cryptic messages, and hidden treasures on a trip that's full of surprises!

Trivia[]

  • Bridget MacNamouse's (the Thea Sisters' friend in the book) name in the original Italian is Mairi Mac Namouse.
Books by Thea Stilton
Main Series The Dragon's Code • The Mountain of Fire • The Ghost of the Shipwreck • The Secret City • The Mystery in Paris • The Cherry Blossom Adventure • The Star Castaways • Big Trouble in the Big Apple • The Ice Treasure • The Secret of the Old Castle • The Blue Scarab Hunt • The Prince's Emerald • The Mystery on the Orient Express • The Dancing Shadows • The Legend of the Fire Flowers • The Spanish Dance Mission • The Journey to the Lion's Den • The Great Tulip Heist • The Chocolate Sabotage • The Missing Myth • The Lost Letters • The Tropical Treasure • The Hollywood Hoax • The Madagascar Madness • The Frozen Fiasco • The Venice Masquerade • The Niagara Splash • The Riddle of the Ruins • The Phantom of the Orchestra • The Black Forest Burglary • The Race for the Gold • The Rainforest Rescue • The American Dream • The Roman Holiday • The Fiesta in Mexico • The Cave of Stars • The Ghost of the Woods • The Search for the Secret Garden
Special Edition The Journey to Atlantis • The Secret of the Fairies • The Secret of the Snow • The Cloud Castle • The Treasure of the Sea • The Land of Flowers • The Secret of the Crystal Fairies • The Dance of the Star Fairies • The Magic of the Mirror
Mouseford Academy Drama at Mouseford • The Missing Diary • Mouselets in Danger • The Dance Challenge • The Secret Invention • A Mouseford Musical • Mice Take the Stage • A Fashionable Mystery • The Mysterious Letter • A Dream on Ice • Lights, Camera, Action! • Mice on the Runway • Sea Turtle Rescue • The Secret Notebook • The Friendship Recipe • The Royal Ball • The Puppy Problem • The Secret of the Butterflies • The Missing Mirror • The Sweetest Dream
The Treasure Seekers The Treasure Seekers • The Compass of the Stars • The Legend of the Maze
Graphic Novels The Secret of Whale Island • Revenge of the Lizard Club • The Treasure of the Viking Ship • Catching the Giant Wave • The Secret of the Waterfall in the Woods • The Mystery at Sea • A Song for the Thea Sisters • The Secret Treasure Hunt
Classic Novels Romeo and Juliet • Pride and Prejudice • A Midsummer Night's Dream • The Phantom of the Opera
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