Is it Sourpuss or Sweetie Pie? That's the question whenever Nanna and Poppy are treated a visit from their granddaughter. Most of the time she's Sweetie Pie, some of the time she's Sourpuss, and then there are those occasions when she's both at once. You can never be sure which it will be. Happy and sad, joyful and furious, delighted and dejected, loving and impossible. She can change in the blink of an eye!