And when these had vanished in the distance Graham heard a peewit wailing close at hand.  He perceived he was now above the South Downs, and staring over his shoulder saw the battlements of Portsmouth Landing Stage towering over the ridge of Portsdown Hill.  In another moment there came into sight a spread of shipping like floating cities, the little white cliffs of the Needles dwarfed and sunlit, and the grey and glittering waters of the narrow sea.  They seemed to leap the Solent in a moment, and in a few seconds the Isle of Wight was running past, and then beneath him spread a wider and wider extent of sea, here purple with the shadow of a cloud, here grey, here a burnished mirror, and here a spread of cloudy greenish blue.  The Isle of Wight grew smaller and smaller.  In a few more minutes a strip of grey haze detached itself from other strips that were clouds, descended out of the sky and became a coast-line—­sunlit and pleasant—­the coast of northern France.  It rose, it took colour, became definite and detailed, and the counterpart of the Downland of England was speeding by below.

In a little time, as it seemed, Paris came above the horizon, and hung there for a space, and sank out of sight again as the monoplane circled about to the north.  But he perceived the Eiffel Tower still standing, and beside it a huge dome surmounted by a pin-point Colossus.  And he perceived, too, though he did not understand it at the time, a slanting drift of smoke.  The aeronaut said something about “trouble in the under-ways,” that Graham did not heed.  But he marked the minarets and towers and slender masses that streamed skyward above the city wind-vanes, and knew that in the matter of grace at least Paris still kept in front of her larger rival.  And even as he looked a pale blue shape ascended very swiftly from the city like a dead leaf driving up before a gale.  It curved round and soared towards them, growing rapidly larger and larger.  The aeronaut was saying something.  “What?” said Graham, loth to take his eyes from this.  “London aeroplane, Sire,” bawled the aeronaut, pointing.

They rose and curved about northward as it drew nearer.  Nearer it came and nearer, larger and larger.  The throb, throb, throb—­beat, of the monoplane’s flight, that had seemed so potent, and so swift, suddenly appeared slow by comparison with this tremendous rush.  How great the monster seemed, how swift and steady!  It passed quite closely beneath them, driving along silently, a vast spread of wire-netted translucent wings, a thing alive.  Graham had a momentary glimpse of the rows and rows of wrapped-up passengers, slung in their little cradles behind wind-screens, of a white-clothed engineer crawling against the gale along a ladder way, of spouting engines beating together, of the whirling wind screw, and of a wide waste of wing.  He exulted in the sight.  And in an instant the thing had passed.

It rose slightly and their own little wings swayed in the rush of its flight.  It fell and grew smaller.  Scarcely had they moved, as it seemed, before it was again only a flat blue thing that dwindled in the sky.  This was the aeroplane that went to and fro between London and Paris.  In fair weather and in peaceful times it came and went four times a day.