And they did. And Aslan stood up and when he opened his mouth to roar his face became so terrible that they did not dare to look at it. And they saw all the trees in front of him bend before the blast of his roaring as grass bends in a meadow before the wind. Then he said,“We have a long journey to go. You must ride on me.” And he crouched down and the children climbed on to his warm, golden back, and Susan sat first, holding on tightly to his mane and Lucy sat behind holding on tightly to Susan. And with a great heave he rose underneath them and then shot off, faster than any horse could go, downhill and into the thick of the forest.
That ride was perhaps the most wonderful thing that happened to them in Narnia. Have you ever had a gallop on a horse? Think of that; and then take away the heavy noise of the hoofs and the jingle of the bits and imagine instead the almost noiseless padding of the great paws.