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?

The Thea Sisters have been invited to Egypt to participate in an 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, but they also discover that thieves are after the hidden treasure.

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 Will Mystery set out for Brightstar Castle to discover what is wrong, but first they must overcome the obstacles and challenges that the fairies are placing in their way.

There's going to be a musical at Mouseford, and the students can't stop squeaking about it! Everyone wants a role, but the auditions won't be easy. Plus, sneaky Ruby Flashyfur has some tricks up her sleeve! Will the Thea Sisters come out on top or will they be singing a different tune when the auditions are over?

"The Thea Sisters are heading to Rome! They were chosen to be part of an international archaeology competition. The mouselets have to follow clues through Rome to solve puzzles and win the golden cup. But as they explore the beautiful city, the sisters get the sense they are being followed, and worse, someone is going through a lot of trouble to slow them down. can teh mouselets figure out who is trying to sabotage their chance at the prize before...

"Yes, it's true--I'm a total 'fraidy mouse and the biggest worryrat. In fact I'm the complete opposite of my super-sporty and very brave friend Bruce Hyena. That's why I couldn't believe it when he dragged me off on a series of outrageous adventures to toughen me up. I had to keep reminding him that I'm not a supermouse! Or am I?"--P. [4] of cover.

When he begins receiving packages containing useless things he did not order, Geronimo Stilton discovers that someone on the Internet has stolen his identity, a dilemma that compels him to enlist the help of computer expert Professor Margo Bitmouse, who helps Geronimo track down the hacker.

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.

"Geronimo Stilton is invited to a rat-jitsu martial arts championship in a snowy faraway land, much to the famouse reporters surprise. With his helpful relatives, Thea, Trap and Benjamin, Geronimo goes to cover the event for the Rodent's Gazette. But something strange is happening. After each championship match, the winner disappears without a trace! Will Geronimo get involved and solve the mystery of the missing martial artists? Or will he be consumed...

"Geronimo has to make sure he doesn't sleep on the job when dealing with his next case! Geronimo Stilton, crusading news reporter and editor of The Rodent's Gazette, has been working too much and is in desperate need of a break. He is getting sleepy, very sleepy, but he can't actually fall asleep. Geronimo's cousin Trap tells him about a specialist, the Great Ratswami, who hypnotizes mice to help them relax. Shortly after Geronimo's meeting with...