Ricky Ricotta's mighty robot vs. the unpleasant penguins from Pluto —Pilkey, Dav, 1966- author.

Infuriated by the declaration that Pluto is no longer a planet, President Penguin and his penguins invade Earth and it is up to Ricky and his robot pal to defeat them--with some help from Ricky's cousin Lucy and her pets...

The magic of the mirror —Stilton, Thea, author.

The Thea Sisters are summoned to the Seven Roses Unit by Will Mystery, but when they get there Will is missing; the sisters follow a trail of clues to the Fantasy Kingdoms, and find out that the Mayhem Mirror has been di...

The hunt for the Colosseum ghost —Stilton, Geronimo, author.

Geronimo is taking his Benjamin on a trip to Rome to learn the city's history (and keep him from failing fifth grade), but when they arrive they're immediately pulled into the investigation of the "ghost" of a gladiator ...

Thea Stilton and the lost letters —Stilton, Thea, author.

It is up to the Thea sisters to investigate when their friend is falsely accused of theft and barred from competing in a figure skating championship in Russia.

Thea Stilton and the Black Forest burglary —Stilton, Thea, author.

"The Thea Sisters are invited to the Festival of Time in Germany! They arrive in the Black Forest and find that a famouse clock has been stolen. The mouselets are on the case. Can they find the thief and return the clock...

The compass of the stars —Stilton, Thea, author.

The Thea sisters continue the search for the seven ancient treasures, using the clues found in Aurora Beatrix Lane's travel diary to find a fabulous emerald which once belonged to Cleopatra--a quest that leads them from ...

Thea Stilton. The Land of Flowers —Stilton, Thea, author.

The Seven Roses, magical flowers which bloom forever and which are linked to the health of the Land of Flowers, are dying, and the Thea sisters together with Will Mystery must travel to that land to discover the reason -...

The secret of the crystal fairies —Stilton, Geronimo, author.

When Will Mystery calls, the Thea Sisters answer the call because there is trouble in one of the fairy kingdoms: a dragon has been turning all the fairies' precious gems into stone, and wrecking havoc throughout the Crys...

The island of dragons : the twelfth adventure in the Kingdom of Fantasy —Stilton, Geronimo, author.

Once again Geronimo is summoned to the Kingdom of Fantasy, and this time he must rescue five princesses of The Kingdom of Lotus Flowers who have been kidnapped by a terrible witch--but first he must journey to the Island...

The Bruce swap —Higgins, Ryan T., author, illustrator.

Bruce the bear's family wishes he were less grumpy, but when his cousin Kevin arrives for a visit, he brings more fun than they ever wanted.

Mysterious eye of the dragon —Stilton, Geronimo, author.

"My sister Thea and my cousin Trap were not getting along! When Grandfather found them arguing over who would get to join me on a trip to Brazil, he forced us all to go together. My friend Isabela needed my help finding ...

Thea Stilton and the Niagara splash —Stilton, Thea, author.

The Thea Sisters are taking a trip to Canada! They have been invited to do some bird-watching with a group of friends. The girls are enjoying learning more about Canada and their love for hockey. But during their trip, o...

The guardian of the realm : the eleventh adventure in the Kingdom of Fantasy —Stilton, Geronimo, author.

Geronimo is in the Kingdom of Fantasy for training on the "Balanced Path" when he learns that Queen Blossom has had a beautiful baby girl, Winglet, and that the baby princess has been kidnapped--and it is up to the brave...

The treasure seekers —Stilton, Thea, author.

On summer vacation in Scotland, the Thea sisters are intrigued by a tapestry that is really a treasure map supposedly leading to a hidden alabaster garden where an ancient treasure is buried, and the story of Aurora Beat...

Mouselets in danger —Stilton, Thea, author.

For the first time ever, Mouseford Academy is offering a course in outdoor survival skills, and it's being taught by the athletic adventurous Bruce Hyena! All five Thea Sisters sign up, along with the Ruby Crew. But when...

The battle for Crystal Castle : the thirteenth adventure in the Kingdom of Fantasy —Stilton, Geronimo, author.

The Harmony Stone has been stolen from the Crystal Castle, and without it the Kingdom of Fantasy is vulnerable to an ancient enemy, The Invisible Army; Geronimo, together with Queen Blossom's daughter, Winglet, embarks o...

The dance of the star fairies —Stilton, Thea, author.

There is a crisis in the Starlight Kingdom, one of the fantasy worlds: its stars, powered by a special kind of stardust, are fading and may soon go out forever, leaving the Kingdom in darkness--so the Thea sisters and Wi...

A fashionable mystery —Stilton, Thea, author.

The Thea Sisters help the famous editor of a fashion magazine escape aggressive reporters, landing themselves and the Mouseford Academy newspaper an exclusive interview with her in the process.

Happy birthday, Geronimo! —Stilton, Geronimo, author.

While celebrating his birthday with his family, Geronimo realizes someone has replaced all of his money with counterfeit bills and sets out to find the thieves.

The treasure of the sea —Stilton, Geronimo, author.

The underwater kingdom of Aquamarina is in trouble because the enchanted Music of the Sea has stopped playing--so Thea and the Thea Sisters, together with their friend Will Mystery set out on a dangerous mission to find ...