Geronimo's cousin Trap has been captured by Gobbler the Putrid, the king of the dragons! If Geronimo can find and deliver the Crown of the Seven Rubies, Gobbler will release Trap. Will Geronimo be able to make it safely to Beastgard to return the crown in time?
It's the day of the Famous Fjord Race, a miceking sailing competition. Geronimo Stiltonord isn't competing, since he gets seasick ... but then he's dragged into a boat! Just when he thinks things can't get worse, the terrible vilekings appear - and so so the evil dragons. Squeak! Will his team stay afloat?
Oh no! one of the special miceking helmets in Chief Sven the Shouter's private collection has been stolen! Could it have been taken by the vilekings - the rival mouse clan? The micekings journey to the vilekings' village to find out ... and while they're there, the dragons attack! Can all the mice work together to save their fur?
The micekings have received a mysterious message in a bottle! Unfortunately, most of it has been damaged by water - but Geronimo can tell it's from the Oofa Oofa, the laziest rodents in the ancient far north. The micekings set sail to Oofadale, in case the Oofa Oofa are in trouble. But on their way, the dragons attack! Fjords and fiddlesticks, what an adventure!
Miceking chief Sven the Shouter has a new goal: to transform smarty-mouse Geronimo Stiltonord into a true macho mouseking. Geronimo must undergo special trainng, leading up to a terrifying final test - pulling a tooth from a dragon's mouth! Shivering squids! Will he ever earn a miceking helmet?
Geronimo Stiltonord has been selected to judge the Shield Mouselet Mega Challenge, a competition of female miceking warriors. But all the contestants are so good, it's impossible to choose just one winner! Even worse, since everyone is distracted by the challenge, the dragons launch a surprise attack! Will the micekings be able to defend their home?
Each year on the Night of Dancing Stars, the elfix aliens distribute gifts to all the creatures of the galaxy. But this year, the holiday is fast approaching, and the spacemice discover that the elfix have all dissapeared! Can Geronimo Stiltonix and his crew find them before their special night?
The spacemice have received an invitation to participation in the intergalactic socceric championship. It's a tournament for the most popular sport in space! But Geronimo doesn't even know how to play soccerix, let alone lead a team to victory against aliens with bizarre skills (like flying)! Can the spacemice team prevail?
There is a strange planet appearing and disappearing from the radar on MouseStar1! Geronimo and the crew land on the mysterious planet to investigate. When they arrive, they discover the aliens who live there are hiding a secret. Can the crew solve the mystery and save the planet before it's to late?
The onboard computer on the spaceship MouseStar 1, Hologramix, is out of order! To fix it, Geronimo Stiltonix must take it to a brilliant inventor who lives on a distant planet. But while Hologramix is being repaired, pirate spacecats attack and steal it! Can the spacemice get Hologramix back before the spacecats turn it evil and set it againts them?