Leon turned slowly, his hands extended. Death was behind him, remorseless, unhesitating. To drop his hand to his pocket would have been the end for him—he had that peculiar instinct which senses sincerity, and when Dr. Oberzohn gave him his instructions he had no doubt whatever that his threat was backed by the will to execute. Oberzohn stood there, a little behind him, white-faced, open-eyed with fear, Mirabelle Leicester. Digby—where was he? He had left him in the grounds. The doctor was examining the broken door and grunted his annoyance. “I fear my plan will not be good,” he said, “which was to lock you in this room and break all those glasses, so that you might become better acquainted with the Quiet People. That is not to be. Instead, march!” What did he intend? Leon strolled out nonchalantly, but Oberzohn kept his distance, his eyes glued upon those sensitive hands that could move so quickly and jerk and fire a gun in one motion. “Stop!” Leon halted, facing the open front door and the steps. “You will remember my sainted brother, Señor Gonsalez, and of the great loss which the world suffered when he was so vilely murdered?” Leon stood without a quiver. Presently the man would shoot. At any second a bullet might come crashing on its fatal errand. This was a queer way to finish so full a life. He knew it was coming, had only one regret; that this shaken girl should be called upon to witness such a brutal thing. He wanted to say good-bye to her, but was afraid of frightening her. “You remember that so sainted brother?” Oberzohn’s voice was raucous with fury. Ahead of him the light fell upon a face. “Digby! Stay where you are!” shouted Leon. The sound of the explosion made him jump. He saw the brickwork above the doorway splinter, heard a little scuffle, and turned, gun in hand. Oberzohn had pulled the girl in front of him so that she afforded a complete cover: under her arm he held his pistol. “Run!” she screamed. He hesitated a second. Again the pistol exploded and a bullet ricochetted from the door. Leon could not fire. Oberzohn so crouched that nothing but a trick shot could miss the girl and hit him. And then, as the doctor shook free the hand that gripped his wrist, he leapt down the steps and into the darkness. Another second and the door slammed. He heard the thrust of the bolts and a clang as the great iron bar fell into its place. Somehow he had a feeling as of a citadel door being closed against him. Dr. Oberzohn had returned unobserved, though the night was clear. Passing through the open water-gate he had tied up to the little quay and landed his unwilling passenger. Digby, according to instructions, had been making a careful circuit of the property, and at the moment was as far away from the barge as it was humanly possible to be. Unchallenged, the doctor had worked his way back to the house. The light in the hall warned him that somebody was there. How many? He could not guess.