The incredibly popular Geronimo Stilton appears in graphic novel form for the first time, with all-new stories never seen before. Geronimo lives in New Mouse City on Mouse Island with his friends and relatives. He works at The Rodent's Gazette, the city's most famous newspaper. In this series of graphic novels, Geronimo travels through time to defend history from his arch nemeses, the Pirate Cats. These calculating cats travel back in time to make themselves supreme rulers of Mouse Island! In The Discovery of America, Geronimo and co. join Christopher Columbus on his voyage from Italy to the New World in 1492 in order to stop the Pirate Cats and save all of the mice on Mouse Island.