Greta and Gracie are sisters - Greta is chatty while Gracie is quiet and it's all fine until, one day, everything changes. It's nearly Christmas and together the sisters decorate the tree, shop for presents and even try a spot of ice-skating! But Greta, of course, always knows best - poor Gracie can't get a word in edgeways. Then on Christmas Eve, while Greta is quietly sleeping, Gracie hears a funny noise . . . whatever could it be? She creeps downstairs to investigate, and the next morning her very special revelation leaves chitty chatty Greta lost for words!