Old King Brady chuckled.
Holding up a false beard, he glanced at the man.
"Why," exclaimed Harry, "it's Mr. Mason!"
"Bless my heart, so it is," added the old detective, feigning to be very much astonished at the discovery. "How strange! Why, Mr. Mason, what in the world are you going around masquerading this way for, at such a late hour of the night?"
The broker's nephew was furious over his exposure.
He knew it was useless to pretend he was not the man they mentioned and he swore at them, and cried, fiercely:
"That's none of your infernal business."
"How angry you are. My! My! Keep cool, Mr. Mason. Wrath isn't going to mend matters for you in any way."
"Get out of my path, you old meddlesome fool!"
"Now, don't get excited," laughed Old King Brady. "You must know, sir, that we are engaged upon very important business. Some time ago we saw you come out of that house, and thinking you were a burglar we followed you down to the East river."