Zip-zip, zip-zip, zip-zip, zip-zip, zip-zip, zip-zip, zip-zip. It was as quick as that, and even more blurred and breathless in both boots than in one. Sophie had brief glimpses between long double strides: of the mansion down at the end of the valley, gleaming between trees, with Fanny’s carriage at the door; of bracken on a hillside; of a small river racing down into a green valley; of the same river sliding in a much broader valley; of the same valley turned so wide it seemed endless and blue in the distance, and a towery pile far, far off that might have been Kingsbury; of the plain narrowing toward mountains again; of a mountain which slanted so steeply under her boot that she stumbled in spite of her stick, which stumble brought her to the edge of a deep, blue-misted gorge, with the tops of trees far below, where she had to take another stride or fall in.

And she landed on crumbly yellow sand. She dug her stick in and looked carefully round. Behind her right shoulder, some miles off, a white, steamy mist almost hid the mountains she had just zipped through. Below the mist was a band of dark green. Sophie nodded. Though she could not see the moving castle this far away, she was sure the mist marked the place of flowers. She took another careful stride. Zip. It was fearsomely hot. The clay-yellow sand stretched in all directions now, shimmering in the heat. Rocks lay about in a messy way. The only growing things were occasional dismal gray bushes. The mountains looked like clouds coming up on the horizon.

“If this is the Waste,” Sophie said, with sweat running in all her wrinkles, “then I feel sorry for the Witch having to live here.”

She took another stride. The wind of it did not cool her down at all. The rocks and bushes were the same, but the sand was grayer, and the mountains seemed to have sunk down the sky. Sophie peered into the quivering gray glare ahead, where she thought she could see something rather higher than rock. She took one more stride.

Now it was like an oven. But there was a peculiar-shaped pile about a quarter of a mile off, standing on a slight rise in the rock-littered land. It was a fantastical shape of twisted little towers, rising to one main tower that pointed slightly askew, like a knotty old finger. Sophie climbed out of the boots. It was too hot to carry anything so heavy, so she trudged off to investigate with only her stick.

The thing seemed to be made of the yellow-gray grit of the Waste. At first Sophie wondered if it might be some strange kind of ants’ nest. But as she got nearer, she could see that it was as if something had fused together thousands of grainy yellow flowerpots into a tapering heap. She grinned. The moving castle had often struck her as being remarkably like the inside of a chimney. This building was really a collection of chimney pots. It had to be a fire demon’s work.