Geronimo Stilton "The Mouse Island Marathon"

This book is about Geronimo Stilton when he is entered in a marathon by his friend Champ Strong Paws.  He then trained by Champ to do the marathon.  He is told to eat healthy foods and wake up at 6:00 am.  When it was time for the marathon he was cheered on by his family.  There was a person who said that when the north wind blows it's freezing cold and when the south wind blows it's so hot that you could boil a egg on your snout.  On his way to the end he saved everyone at least once.  He had heard about a cat called Felinius Ferosousmus also known as Fifi.  Fifi had escaped from the museum.  When he was close to the end he was chased by Fifi.  He told everyone to get out of the way.  He ran all the way to the museum and the museum people caught Fifi in a humongous net. Then his nephew said that he never knew that he would come first.  He then said a speech about Champ and his family's help.  When they arrived home Geronimo treated himself to a cheesy lasagna.  The next day he was entered in another marathon by Champ.  Then he was told to get ready for the marathon.