How does Mrs beaver reassure susan ch 10

After what feels like minutes, but has actually been hours, Lucy suddenly awakens, feeling stiff and tired, and hears the sound of jingling bells. Mr. Beaver runs outside to see who it is, and is gone for five minutes. They all begin to worry, but Mr. Beaver comes back and calls for everybody to come out and see. They rush outside to find a sledge pulled by brown reindeer, guided by a man with a bright-red robe and a great white beard. The children feel "very glad, but also solemn." Father Christmas is even famous in their own world. As Mr. Beaver has told the children and Mr. Tumnus has told Lucy, the White Witch has cast a spell so that it is always winter in Narnia, but never Christmas. The arrival of Father Christmas therefore signals that the White Witch's magic is weakening.