"You followed me?" gasped Mason, with a guilty start.
"Oh, dear, yes. And we saw you meet Sim Johnson on the pier, and we saw you get into the rowboat with your bundle, and we saw the little old man with the gray beard row you out on the stream, and then we saw you all pull up the object you had towing astern, take it into the boat, work over it a while, toss it back, and row away."
Mason's face had grown deathly pale.
He eyed the detectives with such a vindictive look that they could see he would have knocked their heads off if he dared.
Finally, though, he regained his composure a little and asked:
"What object did you see us pull out of the water?"
"Really, I can't say. You were too far from the dock for us to distinguish exactly what it was. But it looked something like the corpse of a man."
"You must be crazy, Brady!"
"Do you think so? We don't. But you've aroused our curiosity about that mysterious trip on the river and we'd like to know what it all meant."
"You'll never learn from me."