A portrait of a local hero All the neighborhood kids agree that Billy Boyd's grandmother is a wonder. She can build freight trains and spaceships, she knows intergalactic code, and she even plays kickball. Best of all are those hot summer evenings when Big Mama treats the whole gang to ice cream. Woody's ice-cream stand is all the way across town, and with Big Mama in the lead, the journey there and back again is always full of adventure. In this...