"As I expected, Goldenburg was not long in scenting profit. He descended on me ravenously. I told him that I would pay him ten thousand pounds if he would put all the letters he possessed in my hands but that I would not otherwise buy his silence. He could see that I was in earnest, and asked for time to consider. I gave him till the night before my wedding. I said nothing of the Princess Petrovska. I knew that they would meet. One cannot be too scrupulous in dealing with a scoundrel, and she had her instructions--to steal the letters from him if necessary, while pretending that she was only anxious to join forces with him in looting me. "But all her efforts went for nothing. He recognised the value of her co-operation in the circumstances, but would give her no hint of the place where he had concealed the letters. Time drew on. You will know enough of her to recognise Lola as a clever, resolute woman. She made up her mind to accompany Goldenburg to his appointment with me as a last resort. It was to keep that appointment that I left Ralph Fairfield at the club the night before the wedding--the night of the murder." He breathed heavily. Thornton picked up a piece of paper and crumbled it nervously between his lean hands. Foyle, eager and alert, was leaning forward, anxious not to miss a word. A great deal of what had been obscure was being cleared up. But so far nothing that Grell had said but could be interpreted as a motive--and a singularly strong one--which might in other circumstances weave a hangman's rope about his own neck. "You did not want any one to know that you were absent from the club," remarked Foyle. "Why?" "That was merely a matter of precaution. I wanted my interview with Goldenburg to be secret. I had given Goldenburg a note which would ensure his being shown to my study and I was purposely a bit late for the appointment. I wanted to give the Princess Petrovska all the opportunities possible. But when I reached there it was clear to me that she had failed. He had not brought the letters with him. I got rid of the woman, and Goldenburg and I quarreled. Then it was that I killed him." "And what of the other woman?" asked the superintendent. "What other woman?" "The veiled woman who was shown up to you by Ivan." "There was no other woman," said Grell, his lips tightening. "I have told you as much as I intend to." "Just as you like. I believe you have told the truth up to a point, Mr. Grell. It is fair to assume that a blackmailer of Goldenburg's calibre would have taken precautions lest you should fail to comply with his demands. Doesn't it appear a fair assumption that he might have taken steps to arrange the presence of the person most interested, next to yourself? He probably never mentioned that he had done so until it was too late for you to stop her. I mean Lady Eileen Meredith."