“You can't very well pay for such trouble as you have given,” said the doctor curtly. “It might not be out of the way though for you to thank Mrs. Hartley for the night's shelter and your breakfast,” but Mrs. Hartley was nowhere to be found--indeed, to all appearances the cottage was quite deserted; and, accompanied by the doctor, they made their way out of the house and down the lane. Not a word was spoken until they reached the road, and then Dr. Arnold, stopping squarely in front of them, said: “I have one thing to say to you two fellows, and that is this--that you are not to tell a living soul of last night's adventure. You have deliberately set about to entrap and disgrace two men vastly your superiors, but so far as in me lies I am going to do all in my power to free them from your clutches and save them from the scandal of this thing, and if I hear of its becoming known through you I'll--”