“Where the unstamped letters come from,� replied Lord Eden.

Luminous and enormous, there heaved up above the garden trees something that looked at first like a coloured cloud; it was flushed with light such as lies on clouds opposite the sunset, a light at once warm and wan; and it shone like an opaque flame. But as it came closer it grew more and more incredible. It took on solid proportions and perspective, as if a cloud could brush and crush the dark tree-tops. It was something never seen before in the sky; it was a cubist cloud. Men gazing at such a sunset cloudland often imagine they see castles and cities of an almost uncanny completeness. But there would be a possible point of completeness at which they would cry aloud, or perhaps shriek aloud, as at a sign in heaven; and that completeness had come. The big luminous object that sailed above the garden was outlined in battlements and turrets like a fairy castle; but with an architectural exactitude impossible in any cloudland. With the very look of it a phrase and a proverb leapt into the mind.

“There, my lord!� cried Oates, suddenly lifting his nasal and drawling voice and pointing, “there’s that dream you told me about. There’s your castle in the air.�

As the shadow of the flying thing travelled over the sun-lit lawn, they looked up and saw for the first time that the lower part of the edifice hung downwards like the car of a great balloon. They remembered the aeronautical tricks of Commander Blair and Captain Pierce and the model of the monstrous pig. As it passed over the table a white speck detached itself and dropped from the car. It was a letter.

The next moment the white speck was followed by a shower that was like a snowstorm. Countless letters, leaflets, and scraps of paper were littered all over the lawn. The guests seemed to stand staring wildly in a wilderness of waste-paper; but the keen and experienced eyes of Lord Eden recognized the material which, in political elections, is somewhat satirically called “literature.�

It took the twelve private secretaries some time to pick them all up and make the lawn neat and tidy again. On examination they proved to be mainly of two kinds: one a sort of electioneering pamphlet of the League of the Long Bow, and the other a somewhat airy fantasy about private property in air. The most important of the documents, which Lord Eden studied more attentively, though with a grim smile, began with the sentence in large letters:

“An Englishman’s House Is No Longer His Castle On The Soil Of England. If It Is To Be His Castle, It Must Be A Castle In The Air.

“If There Seem To Be Something Unfamiliar And Even Fanciful In The Idea, We Reply That It Is Not Half So Fantastic To Own Your Own Houses In The Clouds As Not To Own Your Own Houses On The Earth.�

Then followed a passage of somewhat less solid political value, in which the acute reader might trace the influence of the poetical Mr. Pierce rather than the scientific Mr. Blair. It began “They Have Stolen the Earth; We Will Divide the Sky.� But the writer followed this with a somewhat unconvincing claim to have trained rooks and swallows to hover in rows in the air to represent the hedges of “The blue meadows of the new realm,� and he was so obliging as to accompany the explanation with diagrams of space showing these exact ornithological boundaries in dotted lines. There were other equally scientific documents dealing with the treatment of clouds, the driving of birds to graze on insects, and so on. The whole of this section concluded with the great social and economic slogan: “Three Acres and a Crow.�

But when Lord Eden read on, his attention appeared graver than this particular sort of social reconstruction would seem to warrant. The writer of the pamphlet resumed: