Geronimo Stilton Cavemice #2: Watch Your Tail! by Geronimo Stilton (author) (US edition)

It’s The Flintstones with long tails and a liking for cheese. A Stone Age mission with the clan. Who’s even funnier than Geronimo Stilton? Geronimo’s ancient ancestor. So ancient he’s prehistoric, in fact. Geronimo Stiltonoot is a cavemouse who runs the stone newspaper in the long-ago village of Old Mouse City. But he’s just woken up to a terrible morning. Meteors are falling from the sky, and all the cavemice have a horrid tummy-ache. Geronimo must travel to the Cave of Memories to find the shamanic cure. But danger lurks on his journey…