"The same idea occurred to Paul Renaud," I said. "I can find no evidence that Sir Charles went to Maidenhead that day, and at three o'clock in the afternoon he was certainly at his club." "Did he telephone to madame or attempt to communicate with her in any way?" Quarles asked. "He says not." "But you do not altogether believe him, eh?" "My opinion is in abeyance," I returned. "It is only fair to say that Sir Charles suggested that Paul Renaud may have seen her at the shop in Regent Street. They are suspicious of each other. Renaud was certainly on the premises at the time she was there. Personally I do not attribute much weight to these suspicions. I believe both men are genuine lovers, and would be the last persons in the world to do the dancer any harm." "Or the first," said Zena quickly. "Jealousy is a most usual motive for crime." "I think the child strikes a true note there, Wigan," said Quarles. "We must keep the idea of jealousy before us--that is, if we are compelled to believe there has been foul play. Now, one would have expected Sir Charles to telephone to madame; that he did not do so is strange." "His disappointment had put him in a temper." "That hardly appeals to me as a satisfactory explanation," Quarles returned; "but there is indirect evidence in Sir Charles's favor. Had Madame Vatrotski intended to return to her rooms at once she would almost certainly have taken such a small parcel as her purchases made with her. That she did not do so suggests she had another appointment to keep. Have you a list of madame's admirers, Wigan?" "I am only human, professor, and you ask for the impossible," I said, smiling. "I have a few names here, and I think they may be dismissed from our calculations. One of the strangest points in the case is the lack of reticence amongst her dupes." "Dupes!" said Zena. "I think the term is justified," I went on. "They all seem quite proud of having been allowed to pay for sumptuous dinners and expensive presents. Usually one expects a shrinking from publicity in these affairs, but in this case there is nothing of the kind. I have never seen Madame Vatrotski, but she must have had a peculiar fascination." "I have not seen her either," said Quarles; "but I was at the Academy yesterday, and saw Musgrave's portrait of her. Go and see it, Wigan. I consider Musgrave the greatest portrait painter we have, or ever have had, perhaps. His opinion of the dancer might be useful. Judging from his canvases he must have a strange insight into character." My opinion of pictures is worth nothing, and, to speak truthfully, I saw little remarkable in Musgrave's portrait of Madame Vatrotski. The mystery had caused a large number of people to linger round the portrait, and so far as I could gather the general impression was that it did not do her justice. Some even called it a caricature. "You never can tell what a woman is really like across the footlights," I overheard one man say to his companion.