Mrs. Percy Dragott, it seemed, had arrived in London with no credentials several years before the outbreak of war, bringing with her an elderly husband, to whom she had been recently married, who had just retired from an appointment in the Indian Civil Service. At first by her charity, then by her beauty and finally by her brilliancy she had won for herself a place in London society. At the end of two years her husband, having served his purpose, had died, leaving her free to take full advantage of her popularity. She was emphatically a man’s woman and had found a ready welcome wherever brains were an asset, being particularly sought after by men in public life. Her little house in Mayfair, run with extravagant taste, though no one troubled to enquire where the money came from, had become a kind of salon. The names of the men to whom she had been rumoured to be about to become engaged would take two hands to reckon; they included artists, journalists, soldiers and at least one statesman. On looking back, a fact was brought to light which had escaped notice, namely that over all the men with whom she had been associated she seemed to have spread a blight—in one way or another, after dropping her acquaintance, they had each one failed. Yet until the murder had occurred, no breath of scandal had touched her. Even now the crime would never have been discovered had not the murdered man proved to be a British secret service agent. Colonel Barton, as he had called himself, had been introduced to her as a somewhat romantic figure. The account he had given of himself was that he had been captured at Gallipoli and had made a sensational escape from a Turkish prison-camp. For the first time she, who had earned for herself the reputation of being the coldest woman in London, seems to have been fired with passion. Whether she actually fell in love or had only feigned to do so because she scented danger, it was impossible to say. The man’s case was plain; he had pretended to be infatuated with her in order that he might trap her. He had evidently learnt all that he wanted to know and was on the point of exposing her to the authorities, when he was found dead in his flat. At first his death was taken to be an accident. It seemed that he had fainted and in falling had caught himself a heavy blow on the left temple. But when the rooms were searched, it was found that they had been already ransacked. Nothing that could be traced had been removed, but the thief had been identified as a woman by an initialed handkerchief, which she had left behind her. Moreover she had failed to discover all the papers which condemned her; lying full in sight on the desk was an unsealed, unaddressed envelope, containing the complete history which would have led to her arrest. The contention of the police was that Barton had been done to death by the popular and charitable society beauty.