Geronimo Stilton: Thea Stilton Books in Order

A spooky rumor pulls the Thea Sisters into the woods, where eerie signs hint at a "ghost". Following tracks and clues, they discover what is really lurking among the trees before someone gets hurt.

In New Zealand, the Thea Sisters visit their friend Charlotte and explore a museum in the Valley of Stars. When a rare skeleton called Didi is stolen, they race to recover it and stop the thieves.

In Mexico City, the Thea Sisters help their friend Luz with a special art show while learning about monarch butterflies. When her mural goes missing, they race to track it down and uncover who took it.

On a Route 66 road trip, the Thea Sisters cheer on their friend Ali, who is close to turning her project into a video game. When her computer is mysteriously wiped, they must find out who did it and why.

A holiday in Rome turns into a citywide treasure hunt for the Thea Sisters. Racing through famous sights and archaeological clues, they must solve the riddles before rivals and surprises derail the game.

The Thea Sisters travel to Malaysia on a mission to help protect the rainforest. When threats to the forest grow more serious, they follow clues and take action to stop the damage before it is too late.

A friend's Olympic dreams are on the line, and the Thea Sisters step in to help with training and support. When suspicious setbacks appear, they investigate to protect fair play and keep the race for gold honest.

Violet is thrilled to play with an orchestra in London for a performance of Romeo and Juliet, until strange events strike backstage. The Thea Sisters investigate the "phantom" behind the trouble before opening night.

In Germany's Black Forest, a Festival of Time is shaken when a famous clock is stolen. The Thea Sisters follow a trail of gears, alibis, and hidden passageways to catch the burglar.

At an excavation in Hierapolis, not everyone is happy to have the Thea Sisters around. When a crew member vanishes, the girls follow the riddle of the ruins to find their friend and expose the secret.

The Thea Sisters visit Canada for bird-watching and a taste of hockey, until someone in their group goes missing. Their search leads toward Niagara Falls, where they must piece together the clues in time.

Carnival in Venice should be pure fun, but a masked mystery spoils the party. The Thea Sisters investigate amid costumes and crowds, racing to unmask a thief before the festival ends.

A favorite mystery author disappears, and the Thea Sisters head to Iceland to search for him. Using clues from his unfinished story, they follow a dangerous trail across ice and lava to find the truth.

The Thea Sisters head to Madagascar for a wild adventure, and quickly run into trouble that puts animals and people at risk. They track clues through the island's landscapes to stop a scheme before it spreads.

In Hollywood, the Thea Sisters land near the action, only to discover a hoax threatening a big production. They investigate on sets and in studios, determined to unmask the troublemaker before the cameras roll.

A tropical trip becomes a treasure hunt when the Thea Sisters stumble into a mystery tied to a hidden prize. With rivals on their trail, they follow clues through sun-soaked scenery to find the treasure first.

A bundle of lost letters sparks a mystery that reaches farther than the Thea Sisters expect. Following handwriting, dates, and hidden messages, they work to return the letters and uncover who wanted them to stay lost.

An ancient legend suddenly feels real when a valuable artifact disappears. The Thea Sisters sort truth from myth as they chase clues through museums and historic sites to recover what was taken.

In the Netherlands, the Thea Sisters arrive for a famous garden event, only to find a rare tulip has been stolen. The girls follow a trail of clues to catch the thief before the show is ruined.

A trip tied to chocolate turns sour when someone starts sabotaging the sweet side of the event. The Thea Sisters investigate behind the scenes, following clues to protect a reputation and stop the culprit.

At a lively festival in Spain, the theft of a precious fan pulls the Thea Sisters into an investigation. Their search leads to a hidden treasure and rival hunters, and they race to solve the mystery first.

In Hawaii, the Thea Sisters dive into local traditions and a legend about rare fire flowers. When trouble threatens the celebration, they follow clues across the island to stop a thief and protect what matters.

On a photo safari in Kenya, the Thea Sisters fall in love with the animals at the reserve. Then a newborn lion cub is kidnapped, and the mouselets race across the savanna to bring the cub home safely.

At a major dance event, the Thea Sisters notice a string of strange accidents that could shut everything down. Following shadowy hints backstage and in the crowd, they work to expose the saboteur before the final performance.

A visit to an old castle becomes a classic whodunit for the Thea Sisters. Strange noises, hidden rooms, and a missing object push them to uncover the castle's secret before the mystery ruins the trip.

When the Thea Sisters visit a royal setting, a famous emerald linked to a young prince goes missing. The girls must unravel the theft quietly, following clues through celebrations and secret corridors.

The Thea Sisters board the Orient Express from Paris to Istanbul to return a priceless wedding dress to a museum. With VIPs onboard and rumors of the Acrobat Thief, they guard the dress and hunt for the culprit.

In Egypt, a rare blue scarab and an archaeological mystery draw the Thea Sisters into trouble. With thieves close behind, they follow clues from ancient sites to crowded streets to protect a priceless discovery.

A trip focused on the night sky turns tricky when the Thea Sisters get separated from their group. Working together, they follow the trail, solve the mystery behind the mishap, and find their way back.

In Alaska, the Thea Sisters attend an ecological conference and stay with a local host family. When someone starts blasting the ice with explosives, they must uncover the saboteur before the ecosystem is damaged for good.

In Japan for cherry blossom season, the Thea Sisters expect a dreamy trip. Then a stolen item and a trail of clues turn festivals and sightseeing into a fast-paced hunt to set things right.

New York City is thrilling, but it is also full of trouble. When the Thea Sisters run into a big-city mystery, they chase clues from busy streets to hidden corners of the Big Apple to stop a theft.

In Peru, the Thea Sisters join an expedition near the Andes and Machu Picchu. When a mouse goes missing, they chase clues through ancient passages and puzzles, hoping to uncover the truth behind a legendary secret city.

The Thea Sisters travel to Paris to visit Colette's fashion-designer friend, Julie. When Julie's sketches are stolen, the girls race through the city to catch the thief and save her big show.

A marine biology lesson leads the Thea Sisters to an old map and a shipwreck legend. Their investigation takes them from classroom curiosity to real danger, where a "ghost" story might cover up a very human crime.

In Australia, the Thea Sisters visit a ranch where sheep are mysteriously losing their wool. The search for answers takes them across the outback, where local knowledge and a few risky clues may save the farm.

Invited to teach a journalism course on Mouse Island, Thea uncovers a worrying mystery when a student vanishes. With the Thea Sisters, she follows riddles and secret passages to find the missing mouse before time runs out.