What could be better than a visit to Grandma's? A sleepover, of course! But despite all the excitement, despite Grandma's delicious special meal, and despite Grandpa's fun games, there's still a moment when home suddenly seems very far away. That's when Grandma tells a soothing story and presents a family heirloom--a quilt to keep her granddaughter cozy all night long.           Mary Ann Hoberman and Tiphanie Beeke have together created a universal tale about the love and comfort that only a grandma can provide.