“Do you think,” asked Patsy, as they walked along, “that the young Englishman, the girl Alice talked of, was our man Ellison?”

“That notion has got into my head,” said Chick. “And if it is so, it will be a big opening for us. We’ve got a way of finding out, however, and that is, by finding if Ellison was on a yachting trip last September.”

“And,” added Patsy, “whether he was in the habit of running over to Philadelphia much.”

“That’s so,” said Chick, “I don’t think there is any use of following up Lannigan and the woman, Ladew.”

“I don’t know about that,” said Patsy. “We might stumble on their associates if we did.”

“Well,” said Chick, “if that is so, we had better go back and watch the front of that place to see them come out.”

They had walked along as they had thus talked and had, therefore, gotten something like two blocks below.

Chick turned about, suddenly, saying:

“You’re right about that, Patsy, and we won’t drop them until we see where they go.”

They walked back hastily until they reached the corner on which Patsy had seen the couple that had attracted his attention.