stilton, thea (fictional character)

As the candidates from the Lizard and Gecko student clubs compete in various competitions to determine who will be class president at Mouseford Academy, a mysterious substance is polluting Whale Island's beaches, putting the island and the election both at risk.

While in Kenya for a photo shoot, the Thea Sisters become involved in the hunt for a newborn lion cub that has been kidnapped.

When the Thea sisters travel to Spain for a festival they find themselves on a trail of a secret treasure after the theft of a fan.

When the Thea sisters travel to Hawaii to compete in an international hula festival, they discover the festival is located on the side of a volcano that is about to erupt.

While Violet is taking an art class in Holland, her friend's father turns up missing. His disappearance is linked to a mysterious black tulip.

The Thea Sisters are headed to Italy for a ballet competition, but they aren't just there to dance, they are investigating a group plotting to rig the contest, and the future of their new friend is at stake, in chapter-book format.