Narrated by John Lithgow, himself!!!
After young Mahalia Mouse, who lives under an old Harvard dormitory, is sent to search for food for her family, she finds herself trapped in a student's dark backpack. She escapes when he unzips his bag in a classroom, but she becomes entranced by the professor's lecture on atoms in space and stays to take notes. The students panic when they spot her, but the professor sees Mahalia's potential ("This mouse is a genius!"), and he makes her stay at school for four glorious years to get her degree.