Help, I'm in Hot Lava!

WOO IS GERONIMO STILTONOOT?

He is a cavemouse — Geronimo Stilton's ancient ancestor! He runs the stone newspaper in the prehistoric village of Old Mouse City. From dealing with dinosaurs to dodging meteorites, his life in the Stone Age is full of adventure!

HELP, I'M IN HOT LAVA

Geronimo Stiltonoot and his family are off to find a cure for Grandma Ratrock's aches and pains. She's heard that a remedy hides in Cheesy-La, a legendary valley that Geronimo isn't even sure exists. Little does he know that getting there will be an adventure among geysers, volcanoes, and rivers of molten lava!