She left the house, and saw the man going down the Boulevard some fifty feet in advance of her. She walked along after him, pretending to be totally uninterested in her surroundings, while at the same time keeping a sharp watch upon him.
He seemed in somewhat of a hurry, and walked briskly along, looking neither to left nor to right. Grace kept as close to him as she dared, without running the risk of detection. The walk was a long one. When half an hour had passed, the girl saw that they were entering the Champs Élysées. The Seine they had long since crossed by the Pont Neuf. Up the brilliantly lighted avenue they went, toward Arc de Triomphe. At the corner of the Avenue Kleber, the man turned to the left. Grace followed, wondering where the chase would lead next. To her astonishment, the man disappeared suddenly through a gate which formed the servants' entrance of one of the stately houses which fronted on the avenue. She looked up. It was the house of Mr. Stapleton!
CHAPTER IV
ON the day following that upon which she arrived in Paris, Grace Duvall sallied forth, determined to find out two things—first, the position occupied by Alphonse Valentin in the affair of the kidnapping; secondly, the identity of the man who had stolen the box of cigarettes from Valentin's room, and gone with them to the house in the Avenue Kleber. The latter incident seemed trivial enough, at first sight; yet she reasoned that no one would risk arrest on the score of burglary, to steal anything of such trifling value, without an excellent reason.
She had a short conference with Monsieur Lefevre, before she left the house, and told him of the events of the previous night. The Prefect seemed greatly interested.
"Could you identify the man who stole the cigarettes?" he asked.
"Easily. I had a splendid view of his face."
"Then go to Mr. Stapleton's house and take a look at all the servants. You may find him among them."