Geronimo Stilton is entered in the Mouse Island Marathon by his friend Champ Strongpaws who then forces him to train for it.

"A young boy takes a new book into the bathroom to read. But what a strange story! One by one, all sorts of animals--a cow, a polar bear, a lion, and more--race across the pages. But where are they running to?"--Publisher marketing.

Determined to regain her sense of accomplishment after losing her top-class ranking to Jonah, Grace decides to compete against him in a Labor Day half-marathon, but as they train together, she learns valuable lessons about what truly matters.

Eight-year-old Sadiq wants to try out for the youth football team like his friends, but his parents feel he's too young, and instead suggest that he take up running and join the track club. Sadiq feels that running is wimpy, but the coach convinces him that running races can be fun as well.

"Drew was never much of a runner -- until his dad's unexpected diagnosis. Mia has nothing better to do -- until she realizes entering Half Moon Bay's half-marathon could solve her family's housing problems. And just like that they decide to spend their entire summer training to run 13.1 miles. Along the way, they both discover it takes a lot more than a good pair of shoes. Drew and Mia may have very different reasons for running, but these two twelve...

After his parents die, Jeffrey Lionel Magee's life becomes legendary, as he accomplishes athletic and other feats which awe his contemporaries.