During a hot-air balloon flight, the Thea Sisters discover that the turtles have vanished from Turtle Island! If that wasn't alarming enough, dangerous drums of a strange oil are spotted off the shore of the island-a disaster waiting to happen! The Thea Sisters are surprised that none other than Vissa De Vissen wants to help them save the island and the turtles! All seems lost until Nicky and Paulina spot a couple of turtles entering a mysterious underground cave! There are mysteries within mysteries, but the Thea Sisters are determined to solve them all and save the day.

Thea Stilton Graphic Novels #6

Geronimo's adventurous sister Thea narrates this tale packed with action, mystery, and friendship!In this fabumouse adventure, the Thea Sisters head to Alaska, where they're attending a conference held by an important ecological association. Their host and his family are native Alaskans who show the mouselings their favorite games and activities. But soon there's trouble--the Thea Sisters discover that someone is upsetting the ecosystem by blowing up the ice with explosives! Can the Thea Sisters figure out what's going on and stop the destruction before it's too late?

Thea Stilton and the Ice Treasure (Thea Stilton #9)

Thea Stilton sends Colette, Paulina, Violet, Pamela, and Nicky on a school project exploring in and around Whale Island in search of treasure. When a bad storm interrupts their scavenger hunt, separated, the Thea Sisters must rely on their individual knowledge and skills to make it through the storm and realize the true treasure is being themselves!

Thea Stilton Graphic Novels #8

Follow the adventures of the Thea sisters as they grab their surfboards and head to Windy Island's new surf center.

Thea Stilton 3-in-1 #2

An all-new original Thea Sisters adventure!

Thea Stilton Graphic Novels #7: "A Song for Thea Sisters"

The Thea Sisters are taking a road trip across America along Route 66! They stop in Chicago, St. Louis, and other cities on the way to San Jose. Their friend, Ali, is a programmer and she has a chance to have her project turned into a real video game

Thea Stilton and the American Dream

A fabumouse new boxed set for fans of Thea Stilton! Travel the world with Thea Stilton and the Thea Sisters in this brand-new boxed set! Join Thea on three fabumouse adventures that take her from New York, to Paris, and Peru! In Big Trouble in the Big Apple, Thea investigates after someone threatens to burn down a friend's New York City pizzeria. Then, Thea must find the thief who stole from her fashion-designer friend in Thea Stilton and The Mystery in Paris. And the Secret City of the Incas, hidden in the Andes mountains, may hold the mysterious treasure Thea needs to save a friend in Thea Stilton and The Secret City.

Thea Stilton's Big City Adventures Boxed Set

The Thea Sisters are in for a great adventure when they are invited by a professor at Mouseford Academy on a trip to the Moon.

Thea Stilton and the Star Castaways

Join Thea Stilton and the Thea Sisters on an adventure packed with mystery and friendship! The Thea Sisters are in Russia for a figure skating championship! When their new friend is falsely accused of theft and barred from competing for the gold medal, the five mice resolve to clear her name. Along the way, they discover ancient love letters that could be the key to finding the real culprit! But can they solve the mystery in time?

Thea Stilton and the Lost Letters (Thea Stilton #21)

It is non-stop adventure for the Thea Sisters -- Colette, Nicky, Pamela, Paulina, and Violet! It begins with the Mouseford Academy talent search to find an opening act for boy band sensation 6 Seconds of Spring, but quickly turns into another adventure and a mystery. Will they be able to get in tune or will their search be off-key? Then, guest professor Thea Stilton gives the assignment of a lifetime -- a scavenger hunt around Whale Island. The Thea Sisters and friends must rely on their wits and friendship to gather all the clues needed to find the secret treasure! Collecting the best-selling Thea Stilton graphic novels 7 and 8 in a new paperback edition!

Thea Stilton 2-in-1 #3

Thea Stilton

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