FOR USE IN SCHOOLS AND LIBRARIES ONLY. Geronimo Stiltons ancient ancestor Geronimo Stiltonoot is back in another prehistoric adventure! Geronimo Stiltonoot and his family are off to find a cure for Grandma Ratrocks aches and pains. Shes heard that a remedy hides in a legendary valley, and Geronimo isnt even sure it exists. Little does he know that getting there will be an adventure among geysers, volcanoes, and rivers of molten lava!,
