“Ah! I am well guarded,” thought Sholmes. “I may as well be patient.”

He folded his arms across his chest with that proud air of submission so frequently assumed by heroes when fate has turned against them. And while they crossed the river Seine and rushed through Suresnes, Rueil and Chatou, motionless and resigned, controlling his actions and his passions, he tried to explain to his own satisfaction by what miracle Arsène Lupin had substituted himself for the chauffeur. It was quite improbable that the honest-looking fellow he had selected on the boulevard that morning was an accomplice placed there in advance. And yet Arsène Lupin had received a warning in some way, and it must have been after he, Sholmes, had approached Clotilde in the house, because no one could have suspected his project prior to that time. Since then, Sholmes had not allowed Clotilde out of his sight.

Then an idea struck him: the telephone communication desired by Clotilde and her conversation with the dressmaker. Now, it was all quite clear to him. Even before he had spoken to her, simply upon his request to speak to her as the new secretary of Monsieur Destange, she had scented the danger, surmised the name and purpose of the visitor, and, calmly, naturally, as if she were performing a commonplace action of her every-day life, she had called Arsène Lupin to her assistance by some preconcerted signal.

How Arsène Lupin had come and caused himself to be substituted for the chauffeur were matters of trifling importance. That which affected Sholmes, even to the point of appeasing his fury, was the recollection of that incident whereby an ordinary woman, a sweetheart it is true, mastering her nerves, controlling her features, and subjugating the expression of her eyes, had completely deceived the astute detective Herlock Sholmes. How difficult to overcome an adversary who is aided by such confederates, and who, by the mere force of his authority, inspires in a woman so much courage and strength!

They crossed the Seine and climbed the hill at Saint-Germain; but, some five hundred metres beyond that town, the automobile slackened its speed. The other automobile advanced, and the two stopped, side by side. There was no one else in the neighborhood.

“Monsieur Sholmes,” said Lupin, “kindly exchange to the other machine. Ours is really a very slow one.”

“Indeed!” said Sholmes, calmly, convinced that he had no choice.

“Also, permit me to loan you a fur coat, as we will travel quite fast and the air is cool. And accept a couple of sandwiches, as we cannot tell when we will dine.”

The four men alighted from the other automobile. One of them approached, and, as he raised his goggles, Sholmes recognized in him the gentleman in the frock coat that he had seen at the Hungarian restaurant. Lupin said to him:

“You will return this machine to the chauffeur from whom I hired it. He is waiting in the first wine-shop to the right as you go up the rue Legendre. You will give him the balance of the thousand francs I promised him.... Ah! yes, kindly give your goggles to Monsieur Sholmes.”