And it would be a lazy use of language to say …

And it would be a lazy use of language to say that the thing that answered the door was a nightmare. Nightmares are usually rather daft things and it’s very hard to explain to a listener what was so dreadful about your socks coming alive or giant carrots jumping out of the hedgerows. This thing was the kind of terrifying thing that could only be created by someone sitting down and thinking horrible thoughts very clearly.