"Poor mortal!" he tittered. "And must I wear an ass's head to be in character?" A loud report, and then another, brought them back rudely from a make-believe wood near Athens to a peril-haunted park in an English county. For the second time that night Sylvia knew what fear meant. Intuitively, she shrank close to the strong man who seemed destined to be her protector; and when an arm clasped her again, she cowered close to its sheltering embrace. "Oh, what is it?" she wailed in terror. "It is hard to say," he answered quietly, and the confidence in his voice was the best assurance of safety he could have given. "Those shots were fired from some sort of rifle, not of the same caliber as that which was used this morning, but unquestionably a rifle. Perhaps it is one of these modern pistols. I don't wish to alarm you needlessly, Miss Manning, but there is some probability that the police have discovered the man who killed Mr. Fenley, and there is a struggle going on. At any rate, let us remain out here in the open. We shall be as safe here as anywhere." Sylvia, who had not been afraid to venture alone into the park at midnight, was now in a quite feminine state of fright. She clung to Trenholme without any pretense of other feeling than one of unbounded trust. Her heart was pounding frantically, and she was trembling from head to foot. The police whistles were shrilling their insistent summons for help, and Trenholme knew that the commotion had arisen in the exact part of the Quarry Wood whence the murderous bullet had sped that morning. He was unarmed, of course, being devoid of even such a mildly aggressive weapon as a walking-stick, but there was doubt in his mind that the best thing to do was to stand fast. He was not blind to the possibility of imminent danger, for the very spot they had reached lay in a likely line of retreat for any desperado whom the police might have discovered and be pursuing. Naturally he took it for granted that the criminal had fired the two shots, and the fact that the whistles were still in full blast showed that the chase had not been abandoned. Still, the only course open was to take such chances as came their way. He could always shield the girl with his own body, or tell her to lie flat on the ground while he closed with an assailant if opportunity served. Being a level-headed, plucky youngster, he was by no means desirous of indulging in deeds of derring-do. The one paramount consideration was the safe conduct of Sylvia to the house, and he hoped sincerely that if a miscreant were trying to escape, he would choose any route save that which led from the wood to Roxton village. "Don't hesitate if I bid you throw yourself down at full length," he said, unconsciously stroking Sylvia's hair with his free hand. "In a minute or two we'll make for the avenue. Meanwhile, let us listen. If any one is coming in this direction we ought to hear him, and forewarned is forearmed."