"No doubt about it, Harry. But then, he may have found the body long before he met the negro and Mason. He may have learned whose corpse it was and telegraphed to Mason to come down to the river and identify it."

Harry shook his head.

"I don't agree with your view," said he.

"Why not? It's plausible."

"No, it ain't. It don't account for Johnson being there ahead of Mason."

"By Jove, I didn't think of that."

"I tell you, Old King Brady, the whole circumstance is so suspicious that I'm yet of the opinion that the whole thing is a deep-laid plot, and I'm convinced that we will get at the bottom of the mystery if we keep a watch on the foxy Mr. Mason."

"It won't do any harm to try a while longer."

Harry looked pleased to hear this, and they went downtown and put their plan in operation at once.

Within the next few days several important events occurred.