In his letters to his favorite author, ten-year-old Leigh reveals his problems in coping with his parents' divorce, being the new boy in school, and generally finding his own place in the world.
In a series of diary entries, Leigh tells how he comes to terms with his parents' divorce, acquires joint custody of an abandoned dog, and joins the track team at school.
Presents the further adventures of a motorcycle-riding mouse who goes to school and becomes the instigator of an investigation of rodents and the peacemaker for two lonely boys.