By ten o\'clock the authorities had taken the matter in hand. By some mishap the one man who could have done most to help was lying unconscious at Charing Cross Hospital with no chance of his throwing any light on the subject for some days to come. Darbyshire\'s hurt was not dangerous, but his recovery was a matter of time.

Meanwhile Dr. Longdale was the man of the hour. But he could not allay the panic that had gripped London. A deadly fear had taken possession of everybody. Longdale could hold out no hope, he could only give his conversation with Darbyshire and declare that the bubonic microbe had impregnated the Thames. Did he think seriously of the danger? The answer was not reassuring. For his part Longdale would far rather see a million of troops and a siege train battering London than hear of such a thing as this.

There was only one thing for it. It was no time for kid glove remedies. Six of the great London Water Companies had their supply cut off within an hour. It is almost impossible to sit down and realise what this means, and that under a sky like brass and the thermometer at 97° in the shade.

Try and imagine it for a moment, and try and wonder why the thing has not happened before. Think of two-thirds of two millions deprived suddenly of the element which is almost as vital to existence as food. Try and realise that these two-thirds of six millions derive their water supply from an open stream that at any moment by the accident of chance might be turned into a hideous poison-cup.

Under a blazing sunshine after days of heat and dust the packed East End was suddenly deprived of every drop of water. For an hour or two no great hardship was felt, but after that every moment added to the agony. Before long the railway termini were packed with people eager to be away from the metropolis.
Well-dressed business men could be seen proceeding in cabs to the favoured area with buckets and water cans.

By midday business was at a standstill. There was not a water cart to be seen from Kensington to the Mansion House. Every cart and tank that could be raked together had been despatched into the New River and Kent Water area with instructions to convey a supply as speedily as possible to the congested districts East and South-east of the Thames. By lunch time the City presented a strange spectacle. Well-dressed business men could be seen proceeding in cabs to the favoured area with buckets and water cans with the avowed object of taking a supply forthwith. Cabmen were commanding their own prices.

Fairly early in the morning came the announcement that mineral waters had gone up two hundred per cent. in price. By midday the supply for the time being had ceased. Men of means with an eye to the future had bought up the whole stock. The streets were crowded with people anxiously waiting developments.

For the time being the scare was kept well in hand. What men were most anxious to know, though they dared hardly whisper the question, was whether any disease had broken out as yet. It was a............