"But we can be logical, at all events," said Ronald. "Compelled for a time to remain idle and in the dark, we can put flint and steel together in the endeavor to produce a light. I am inclined to the belief that they are no longer in the city. For what reason should they change hotels? Whatever may be the cause of their sudden association they would certainly wish to keep their movements quiet, and they would frustrate their wish by flitting from one hotel to another. From what I learned, Mr. Nisbet has paid frequent visits to Paris, and as his name appears frequently on the books of the Hôtel Chatham it is natural to suppose he has been in the habit of putting up there. If he had any fear that he was being followed, he would not yesterday have gone to an hotel where he was well known, but would have chosen another which was not in the center of the city, and where he would be less open to observation. The time they left the hotel favors the conclusion that they were bound for a railway station, and this conclusion is strengthened by the early departure of Mr. Rivers, whose occupations have made him more methodical than ourselves. We are apprentices in the craft; he is an expert. The inquiry agent in London has doubtless telegraphed him of our arrival here, and where we are staying--in which case he would have called upon us long before now. Yes, the tracked and the tracker are no longer in the city."

"You have convinced me," said Bob, and I also recorded my conviction.

"The point to determine is," continued Ronald, "for what place they are bound. No person in Paris can assist us. Our only hope is in Mr. Dickson. Let us wire to him at once."

He and I went off straightway to the telegraph office, where we dispatched a message to Mr. Dickson. Bob remained in the hotel with Barbara, in order to receive a possible caller, who, it is needless to say, did not make his appearance. The answer to our telegram was that Mr. Dickson had received no information from his agent Rivers, that he had every confidence in his man, and that the moment he heard from him he would send us another wire. Meanwhile, we were to remain where we were, at the Hôtel de Bade. Nothing further reached us until nine o'clock at night, and then a welcome telegram, to the effect that the party were on their way to Lucerne, whither we had better follow them by the earliest train. "Put up at Hôtel National," were the concluding words of the message. Upon studying the railway trains we found that nothing was to be gained by starting in the night, and early the following morning we were on the road to Lucerne. At the Hôtel National a telegram from Mr. Dickson awaited us, instructing us to remain at the hotel until we heard from Mr. Rivers, whom we might now consider in direct communication with us, and before many hours had passed we received a note from that gentleman. "Take the boat" (wrote Mr. Rivers) "to Tell's Platte. I am stopping at the Hôtel-Pension zur Tellsplatte, and shall be happy to see you there. From, indications we have reached the terminus." This was agreeable news, and seemed to hold out the promise that we had at length tracked Mr. Nisbet down. We wasted no time, but took the first boat, and were presently steaming down the enchanting lake, the beauties of which perhaps only one of us thoroughly enjoyed, the little girl Barbara. "Oh," she sighed, "if Molly's 'ere, I don't wonder she never came back to London." It was three in the afternoon when we landed at Tell's Platte. We were in no mood for sightseeing, and did not therefore visit the chapel, but ascended the hill that led to the hotel, where we found Mr. Rivers waiting for us.

He came forward to greet us, a short, wiry man, with clean-shaved face, browned with exposure to the sun, and a bright eye. He addressed me by name.

"Mr. Emery?"

"Yes."

"May I ask the name of the gentleman who is doing business for you in London?"

"Mr. Dickson."

"Have you anything you can show me from him?"