Welcome to the prehistoric world of Old Mouse City, where dinosaurs roam and the printing press is still a thing of the future. Meet Geronimo Stiltonoot, the ancient ancestor of the famous Geronimo Stilton. As the busy editor of The Stone Gazette, Geronimo spends his days carving the daily news into heavy stone slabs. Life in the Stone Age is never boring, especially when you have to dodge falling meteorites, outrun sabertoothed tigers, and avoid stepping on a ferocious T-Rex on your way to work. But the real trouble begins when a shocking crime rocks the village. The most precious artifact in the entire Mouseum has vanished. The legendary Stone of Fire is missing, and everyone is in a total panic. Now, Geronimo Stiltonoot must team up with his clever cavemouse friend, Hercule Poirat, to solve the ultimate prehistoric mystery. Together, they have to track down the missing artifact before it is too late. All clues point to the fearsome Tiger Khan and his band of sneaky felines. Can this brave mouse duo retrieve the Stone of Fire, or is Old Mouse City doomed to stay in the dark? Grab your favorite club and join the funniest cavemouse adventure of all time.