Needless to say that Simmons kept open a wary eye for the reappearance of Zillah Mayhew and the man Edwards. To his surprise neither turned up. In the meantime Grewgus was keeping a watch on the women at Ashstead Mansions, and convinced himself, with the aid of the friendly hall-porter, that she was in London during the whole of the time that Léon Calliard was in Brussels. Therefore, a certain theory of his was shattered, when he found she was staying on from day to day. His idea was that, having discovered she was being shadowed in Paris, her plans had been suddenly nipped in the bud by that fact, and she had headed for the shelter of the flat. This did not mean that she had given up her original designs against the wealthy jeweller, only postponed them. After a brief interval, during which she judged the scent would have become cold, she would follow him to Brussels, and there add him to her no doubt very numerous list of victims. It followed from this, then, that blackmail had not been her ultimate object. But it was obvious that she had some object in sticking so closely to the Frenchman. And so far as it was possible to reason, the instructions given by Stormont to Edwards were concerned with the wealthy jeweller, as neither the man nor the woman had associated with anybody else during their stay in Paris. Edwards had been seen about with nobody except the girl who called herself Miss Glenthorne. For three days Simmons kept a pretty close watch on Calliard. On the fourth he relaxed his vigilance a little, having made up his mind by now that nothing more was to be feared from the pair of confederates. And on this day something unusual happened. Calliard did not return to the hotel for lunch, and he did not return for dinner. Simmons did not attach very great importance to this; he might have gone somewhere else for the day on business. To-morrow he would see him pursuing his ordinary routine, without a doubt. But when the morrow came, and no Calliard appeared in his usual haunts, Simmons became alarmed. That evening he went to the director of the _Palace Hotel_, with whom he had a slight acquaintance, and who knew the nature of his occupation, and inquired for news. He explained that, unknown to Calliard himself, he was watching his movements in connection with a certain couple who might have evil designs upon him. The director, a most voluble person, was quite ready to talk to a man whom he knew he could trust.