Brett leaned back in the cab and laughed heartily.
"We are the most interesting persons in Paris to them at this moment," he said. "That poor fellow who sold us the toys will have to change his position, I am afraid. One of them is following us now. Let's see who it is."
At the next street corner he stopped the cab suddenly, and jumped out, followed by Fairholme. A minute later another vehicle dashed into the street. In it was seated a lady, closely veiled; but a large feather hat and the grotesque pattern of a black veil could not wholly conceal the pretty, determined face of La Belle Chasseuse.
Evidently she had no one at hand to undertake the mission, so she followed Brett in person. He signalled to her and to her driver. Astonished, the man pulled up. Brett instantly advanced and took off his hat with that pleasant smile of his which usually went straight to the female heart, but which now thoroughly lost its effect on the furious young woman who looked at him from the interior of the voiture.
"Allow me," he said, "to offer my friendly services. It is a close day and mademoiselle has, I am sure, many other calls on her time. I will save you at least an hour, and myself nearly the same period. I am going to secure the presence of a witness to identify you as the lady who crossed the Channel last Tuesday in company with a gentleman. You both drove to the Grand Hotel, and your companion signed the register there in the names of Mr. and Mrs. Talbot; is it not so?"
She bent forward and looked at him viciously. Her eyes sparkled with annoyance at being caught so easily in her self-imposed piece of espionage.
"Monsieur is clever," she snapped.
"Thank you," he replied, still smiling. "I can occasionally hit the mark with a guess as well as mademoiselle can with her pistol. But, believe me, I only intend at this moment to be polite. Of course, the presence of a witness to identify you is unnecessary. Mademoiselle can now return to the Cabaret Noir, whilst my friend and I will proceed direct to the Grand Hotel. It saves so much trouble, does it not?"