"Well," said Jack, "I feel positive that he is none other than our old friend Count Blowinski." "What!" exclaimed Frank incredulously. "But Count Blowinski is in Siberia by this time." "He should be, I'll admit," agreed Jack. "But he can't be in two places, and he's here. Therefore, he can't be in Siberia." "Pshaw!" said Frank. "Now that you have called my attention to the man I do see a certain resemblance in build, but I don't believe he is Count Blowinski." "All right," said Jack. "But I do believe it." Their supper was now placed before them and the lads fell to with a will, Jack the while casting an occasional glance toward the man he believed to be Count Blowinski. Frank and Jack finished their meal before the big man--whoever he was--and Frank was for leaving immediately. But Jack protested. "Maybe the fellow is not Count Blowinski," he said, "but it will do no harm to make sure. If I could get a look at his face, I believe I would know him whether he was disguised or not." "Well, go over and accost him," said Frank with a smile. "Not much," returned Jack; "for if he did happen to be the count there would be an uproar and he might get away. No, we'll wait here until he goes out and then we'll follow him." "Good night!" said Frank. "Here you are hunting more trouble again. What would Lord Hastings say?" "I don't know what he'd say. However, he is not here, so we won't worry about that. But if you don't want to come along, I can trail the fellow by myself." "Oh, I'll go along," said Frank. It was probably twenty minutes later that the man at the other end of the room rose, called for his hat and coat and made his way from the restaurant. Strain as they would, the lads were unable to catch sight of his face; so they hurried after him. Outside, Jack recognized the figure half a block down the street. He led the way in pursuit, Frank a few paces behind. If the man, fearing he was followed, was trying to shake off possible pursuers, he could not have gone about it in a manner more to have aroused Jack's suspicions. First he crossed the street and then turned to the left down a side street. At the next corner he again turned to the left, walked two blocks ahead, and again turned to the left. "Whoever he is, he's up to something with all this maneuvering," said Frank. Jack nodded. "I'll bet I'm right," he declared. Again the man ahead turned a corner, this time, however, to the right. Jack and Frank came around the corner a moment later and the former uttered an exclamation of dismay. The man they had been trailing was nowhere to be seen. "Now where do you suppose he has gone?" demanded Jack in deep disgust. "Not knowing, I can't say," said Frank. "But it wouldn't be much of a guess to say that he disappeared in one of these houses. Which one, I haven't any idea." "I suppose you're right," said Jack. "I wonder if he suspected he was being followed?"