It was so quiet and deserted that the falling of a big stone reverberated along the tube with a hollow sound. There was a crack, and a section of piping gave way slightly and pressed down upon one of the electric mains. A tangled skein of telephone wires followed. Under the strain the electric cable parted and snapped. There was a long, sliding, blue flame, and instantly the tube was in darkness. A short circuit had been established somewhere. Not that it mattered, for traffic was absolutely suspended now, and would not be resumed again before daylight. Of course, there were the work-men's very early trains, and the Covent Garden market trains, but they did not run over this section of the line. The whole darkness reeked with the whiff of burning indiarubber. The moments passed on drowsily.

Along one side of Bond Street the big lamps were out. All the lights on one main switch had gone. But it was past one o'clock now, and the thing mattered little. These accidents occurred sometimes in the best regulated districts, and the defect would be made good in the morning.

It was a little awkward, though, for a great State ball was in progress at Buckingham Palace. Supper was over, the magnificent apartments were brilliant with light dresses and gay uniforms. The shimmer and fret of diamonds flashed back to lights dimmer than themselves. There was a slide of feet over the polished floors. Then, as if some unseen force had cut the bottom of creation, light and gaiety ceased to be, and darkness fell like a curtain.

There were a few cries of alarm from the swift suddenness of it. To eyes accustomed to that brilliant glow the gloom was Egyptian. It seemed as if some great catastrophe had happened. But common-sense reasserted itself, and the brilliant gathering knew that the electric light had failed.

There were quick commands, and spots of yellow flame sprang out here and there in the great desert of the night. How faint and feeble, and yellow and flaring, the lights looked! The electrician down below was puzzled, for, so far as he could see, the fuses in the meters were intact. There was no short circuit so far as the Palace was concerned. In all probability there had been an accident at the generating stations; in a few minutes the mischief would be repaired.

But time passed, and there was no welcome return of the flood of crystal light.

"It is a case for all the candles," the Lord Chamberlain remarked; "fortunately the old chandeliers are all fitted. Light the candles."

It was a queer, grotesque scene, with all that wealth of diamonds and glitter of uniforms and gloss of satins, under the dim suggestion of the candles. And yet it was enjoyable from the very novelty of it. Nothing could be more appropriate for the minuet that was in progress.

"I feel like one of my own ancestors," a noble lord remarked. "When they hit upon that class of candle I expect they imagined that the last possibility in the way of lighting had been accomplished. Is it the same outside, Sir George?"

Sir George Egerton laughed. He was fresh from the gardens.