Thea Stilton and her sisters journey to the land of Minwa, a realm linked to the legends of Japan and wrapped in mysteries and enchantments, to discover why the realm's special lotus flowers are disappearing--and why their diappearance seems to be threatening the whole land.

When one of the Thea Sisters' favorite mystery writers goes missing, the five mice travel to the author's native Iceland, where they reconstruct the dangerous plot of his latest novel in the icy terrain to piece together clues.

" While on vacation in Greece, the Thea Sisters make friends with a company of actors who are rehearsing for a play that's about to open. When an actress sprains her ankle, Colette ends up standing in for her! But suddenly, right before the performance, the lead actor goes missing. Can the mouselets find him in time for the show to go on?" --

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 and she's willing to do whatever it takes! Can these mice play nice, or will the science fair be a total flop?

When Thea Stilton's students at Mouseford Academy are assigned to write about the school, they happen upon clues left by past students that point toward a treasure. If they want to actually find it, though, they'll all need to work together.

While on vacation in the Bahamas, the Thea sisters stumble across an old pirate map and endeavor to find the treasure, unaware that someone else is also seeking the prize.

"An ancient treasure is in danger! The Thea Sisters have been invited to Egypt to participate in a fabumouse archeological excavation. They are helping to look for the legendary ancient Treasure of the Sun! A precious blue stone scarab may be the key to their search, and they work enthusiastically to uncover the past. But they also discover that thieves are after the hidden treasure. It's up to the Thea Sisters to stop them!"--P. [4] of cover.

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 Crystal Kingdom--and it is up to the sisters to find out why the dragon is destroying this Kingdom and stop him before it is too late.

Thea Stilton and her journalism class try to find a missing student.

"The Thea Sisters are headed to Venice, Italy! They'll be there for the Carnival, an annual festival that's famouse for its elaborate masks. The mouselets love exploring the city's bridges and canals, and seeing the beautiful costumes mice wear to Carnival celebrations. But a mysterious thief strikes while they are there! Can they unmask him before the festival ends?"--Page 4 of cover.