Can scaredy-mouse Geronimo Stiltonord survive in the age of Vikings and dragons? Miceking chief Sven the Shouter has a new goal: to transform smarty-mouse Geronimo Stiltonord into a true macho mouse king.

Geronimo must undergo special training, leading up to a terrifying final test -- pulling a tooth from a dragon's mouth! Shivering squids!

Will he ever earn a miceking helmet?