About the Book: Geronimo Stilton -Heromice Slip-Case Set
Nothing is impossible for Geronimo Superstilton! He helps watch over Muskrat
City, ready to fight evil at all costs. He is strong, he is invincible, he is
fearless! He is one of the Heromice! Now you can collect all four in the series
in a unique slip-case boxed set.