Author : Geronimo Stilton
Geronimo is determined to prove that he's a true friend, even if it means climbing Mouse Everest! Professor Paws von Volt needs him, and that's good enough for Geronimo. Guided by Sherpas and with help from his family, he sets out on an epic rescue mission. But what is that looming shadow following him? And why is Geronimo the only mouse to see it?