An hour later I saw the Count's lawyer, Señor Serrano, at his hotel in Russell Square, and from him learned much more regarding his late client's disposition of his property. The Count had apparently not been on very affectionate terms with his second wife, which accounted for him leaving the bulk of his fortune to his daughter Gabrielle, and in case of her death, to his partner De Gex, whom he had, of course, believed to be an honest man. The Count had died suddenly several months before his daughter. He had died from orosin, no doubt administered by someone in De Gex's pay. Then almost before the will could be proved in the girl's favour, Señor Serrano learned that the girl herself had died in England. Since then he had been constantly occupied in straightening out his late client's affairs, and had now come to London for the first time in order to see Oswald De Gex, who had been constantly pressing for a settlement of the estate. He had seen him on the previous day, when he appeared to be anxious that the affair should be cleared up. "As he spoke of his late partner, and of his daughter, tears came to his eyes," said the Spanish lawyer, speaking in French. Tears in the eyes of Oswald De Gex! I smiled at the thought. As for Rivero he now became just as puzzled as I was myself. To me the motive of poor Gabrielle Engledue's death was now quite apparent, and, moreover, it seemed that the reason De Gex required a forged death certificate was because he was not exactly certain whether by a post-mortem examination any trace of the drug could be found. He was not quite sure that one or other of the great London pathologists might not identify orosin. With the Count's death on the Continent he had taken the risk, well knowing that any ordinary doctor would pronounce death as being due to heart failure, as indeed it was. In London, however, he felt impelled to take precautions, and they were very elaborate and cunning ones, as I now knew. With the motive thus apparent, I felt myself on the verge of triumph. Yet without full knowledge of what occurred to my poor beloved on that night how could I denounce the arch-criminal whose favours were now being sought by the great ones of the land. I was still in a quandary. I had established to my own satisfaction that Tito Moroni, the doctor of the Via Cavezzo, was the person who had distilled the orosin, and who had no doubt introduced it to his wealthy but unscrupulous patient as a means of ridding himself of unwanted persons and enriching himself at the same time. Indeed, these facts were eventually proved up to the hilt. The motives for the deaths of the Conde de Chamartin, his daughter, and the philanthropic Dutch financier, were all quite plain, but, of course, I had said nothing to Rivero, or to anybody else, regarding my acceptance of a bribe to assist De Gex in the committal of a crime.