No one could tell how the fire originated. In the daily "report" of fires, made next day by the chief of the Red Brigade, wherein nine fires were set down as having occurred within the twenty-four hours, the cause of this fire in Ladbroke Square was reported "unknown." Of the other eight, the supposed causes were, in one case, "escape of gas," in another, "paraffin-lamp upset," in another "intoxication," in another, "spark from fire," in another, "candle," in another, "children playing with matches," and so on; but in this mansion none of these causes were deemed probable. The master of the house turned off the gas regularly every night before going to bed, therefore it could not have been caused by escape of gas. Paraffin-lamps were not used in the house. Candles were; but they were always carefully handled and guarded. As to intoxication, the most suspicious of mortals could not have dreamed of such a cause in so highly respectable a family. The fires were invariably put out at night, and guards put on in every room, therefore, no spark could have been so audacious as to have leaped into being and on to the floor. There were, indeed, "matches" in the house, but there were no children, except one old lady, who, having reached her second childhood, might perhaps have been regarded as a child. It is true there was a certain Betty, a housemaid, whose fingers were reported by the cook to be "all thumbs," and who had an awkward and incurable tendency to spill, and break, and drop, and fall over things, on whom suspicion fastened very keenly at first; but Betty, who was young and rather pretty, asserted so earnestly that she had been unusually happy that night in having done nothing whatever of a condemnable nature, and backed her asseverations with such floods of tears, that she was exonerated, and, as we have said, the cause was reported "unknown." It was not, however, so completely unknown as was at first supposed. There was a certain grave, retiring, modest individual who knew the gentleman of the house and his doings a little more thoroughly than was agreeable to the said gentleman, and who had become aware, in some unaccountable way, which it is impossible to explain, that he, the said gentleman, had very recently furnished the house in a sumptuous style, and had insured it much beyond its value. The said individual's knowledge ultimately resulted in the said gentleman being convicted and transported for arson!