London was beginning to get uneasy. There had been outbreaks before, but they were of the normal type. People, for instance, are not so frightened of smallpox as they used to be. Modern science has learnt to grapple with the fell disease and rob it of half its terrors. But this new and virulent form of diphtheria was another matter.
Hubert sat over his dinner that night, making mental calculations. There were nearly a thousand houses of varying sizes in Devonshire Park. Would it be necessary to abandon these? He took down a large scale map of London, and hastily marked in blue pencil those areas which had developed rapidly of recent years. In nearly all of these a vast amount of artificial ground had been necessary. Hubert was appalled as he calculated the number of jerry-built erections
