30 Results
Book jacket

Book

2015
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.
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Book

2018
While the Thea sisters are at the excavation site of a dig at Hierapolis, Professor Brenninger unearths a series of priceless and very old figurines, but the Thea Sisters think the discovery may be a scam and investigate...
Book jacket

Book

2018
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...
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Book

2014
It is up to the Thea sisters to investigate when an Ecuadorian chocolate factory known for its environmental practices begins malfunctioning and the owner suspects sabotage.
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Book

2014
While vacationing in Greece, the Thea sisters are asked to help find an actor who has gone missing right before the opening of his play.
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2014
The students of Mouseford Academy are participating in an enormouse science fair! Mice from schools around the world are all hoping to take the top prize. The Thea Sisters would love to win, but so would Ruby Flashyfur a...
Book jacket

Book

2013
Traveling to Hawaii to compete in an international hula festival, the Thea Sisters' fun is about to change when they realize a volcano is about to erupt and they must warn the other competitors before it is too late.
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Book

2013
The Thea Sisters are visiting friends in Spain when a mysterious theft turns their trip into an investigation! They end up hot on the trail of a secret treasure. The mouselets are in for an incredible adventure full of f...
Book jacket

Book

2015
The Ratstreet Boys, the most famous band on Mouse Island, is performing at Mouseford Academy and their producer is auditioning student bands as the opening act--can the Thea Sisters win the coveted spot?
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Book

2016
While visiting a movie set in Hollywood, the Thea sisters set out in search of a thief who has stolen an important reel of film from the studio.
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2016
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...
Book jacket

Book

2011
The mouselings are headed on a fabumouse mission to the moon! After much preparation, the mice blast off. But when they arrive at their lunar vacation spot, things start to go wrong, including spaceship wrecks and rebell...