"And that is in—"
"Gaming."
"Is it true, Henry, that the room below your master's apartments is fitted up for private gambling?"
Henry stirred uneasily, and looked his answer.
Doctor Vaughan smiled. "I see how it is," he said. "Well, then, this man, the Professor, do you see much of him of late?"
"A great deal, sir; he is very often with my master at his rooms, but they never go out together. They have had a great deal of privacy lately; something new is afoot."
"The man is a sort of decoy-duck, I fancy?"
"Yes; what the gamblers call a capper, or roper-in."
"Well, Henry, I think I won't detain you longer now. Take this," putting into his hand a twenty-dollar bill, "and keep your eyes and ears open. If your master leaves town, observe if the Professor disappears at the same time."
Henry expressed his gratitude and his entire willingness to keep an eye upon the doings of Mr. Davlin and the Professor, and bowed himself out, muttering as he went: "They will make it lively for my fine master before very long, and I think I am on the side that will win."