There is a briskness and brightness in Piccadilly at seven o'clock on a clear, cold, winter's night unequalled in any thoroughfare in the world. On the pavements and in the motor-buses are thousands of London's workers hurrying to their homes in western suburbs, mostly the female employees of the hundreds of shops and work-rooms which supply the world's fashions--for, after all, London has now ousted Paris as the centre of the feminine mode--the shops are still gaily lit, the club windows have not yet drawn their blinds, and as motors and taxis flash past eastward, one catches glimpses of pretty women in gay evening gowns, accompanied by their male escorts on pleasure bent: the restaurant, the theatre, and the supper, until the unwelcome cry--that cry which resounds at half-past twelve from end to end of Greater London, "Time, please, ladies and gentlemen. Time!"--the pharisaical decree that further harmless merriment is forbidden. How the foreigner laughs at our childish obedience to the decree of the killjoys. And well he may, especially when we know full well that while the good people of the middle class are forced to return to the dulness of their particular suburb, the people of the class above them can sneak in by back doors of unsuspected places, and indulge in drinking, gambling, and dancing till daylight. Truly the middle-class Londoner is a meek, obedient person. One day, however, he may revolt. Piccadilly was particularly bright and gay that night, as, passing the end of St. James's Street, we sped forward in the taxi towards Brompton Road and past the Natural History Museum to Gloucester Road. On our arrival the door of the flat was opened by a constable without a helmet. Recognising the famous inspector, he saluted. The body of the unknown girl had been removed to the mortuary for a post-mortem examination, but nothing else had been moved, and two officers of the C.I.D. were busy making examination for finger-prints. I allowed them to take mine for comparison, but some they found upon the mahogany table and upon the back of a chair were undoubtedly those of the victim herself. The small glass-topped specimen-table still lay where it had been overturned, and the fragments of the two green-glass flower-vases were strewn upon the carpet with the drooping red anemones themselves. Regarding the overturned table the two detectives held that it had separated the assassin from his victim; that the girl had been chased around it several times before her assailant had thrown it down, suddenly sprung upon her, and delivered the fatal blow, full in her chest. "We've thoroughly examined it for finger-prints, sir," the elder of the two officers explained to my companion. "Both on the glass top and on the mahogany edge there are a number of prints of the victim herself, as well as a number made by another hand." "A man's?" I asked. "No; curiously enough, it seems to be a woman's," was the reply. "A woman's!"