"I think we had better keep an eye on that frisky young gentleman when we return to New York," continued the old detective, wisely. "It may lead to a solution of the problem we are so anxious to solve for the broker."

"Are you going back to Dalton's to see him?"

"Yes, this afternoon. I merely wish to size him up."

"How long do you intend to remain here?"

"I'd like to unravel the great swamp mystery before we go."

"Perhaps we may in a few days."

"Well, we'll give the matter a fair trial, anyhow."

Upon reaching Swamp Angel, they soon located the little hotel and there turned into bed for a few hours' sleep.

It was late in the afternoon when they returned to Dalton's.

Here they met the old negro again and he said: