Tomorrow morning, Mousey Gray leaves to take up his duties as a member of Uncle Sam's army, so all of the good citizens of Pine Ridge have turned out to wish Mousey goodbye at a farewell party given in his honor. As we look in on the little community today, it's late in the evening and the gaily decorated schoolhouse is jammed with Mousey's friends, young and old. Lum is seated along one wall, trying to balance a plate of food on one knee, and Abner is just approaching.