Dear rodents, Here on Mouse Island, all my books have become bestsellers. They are hilarious adventures, more tender than feta, tastier than gruyere, and more aromatic than parmesan... They are stories that will remain unforgettable to you, I guarantee it, I, Geronimo Stilton. THE VALLEY OF THE GIANT SKELETONS "It was a stifling day in July... I was looking for inspiration to write a new story when suddenly my cousin Trap entered my office. In his hands, he held a map that belonged to an uncle of ours, Colorado Stilton. The map hid a mysterious treasure! So we immediately set off on our journey. Destination: Mongolia!" [Excerpt from the text on the back cover of the edition]