COME WITH ME TO TRAVEL WITH PROFESSOR AMPERIO VOLT'S TIME MACHINE! WE WILL REACH DISTANT ERAS, MEET GREAT PERSONALITIES, ENCOUNTER WILD BEASTS, EXPLORE INTERESTING PLACES, AND SOLVE THE STRANGEST MYSTERIES OF HISTORY. WE WILL HAVE A GREAT TIME! I GUARANTEE IT, I, GERONIMO STILTON. Have you ever seen mammoths galloping? And moreover, chasing you? Have you seen a camp of prehistoric people? Have you been in a bear's cave (with the bear inside)? Have you encountered an angry saber-toothed tiger on your way? Well, it has happened to me! I started a journey through time from the Gate of Time and Space, the amazing invention of Professor Volt, and found myself in the Ice Age. Brrr, what a terrible cold... One of the most exciting adventures of my life awaited me!