My housemaid entered and announced that the gentleman who had been waiting in Dr. Symington-Tearle's car, and was now in the hall, wished to know if the doctor would be long. "Oh, that is a patient of mine," said Symington-Tearle, "ask him to come in." A large, stout, red-faced gentleman entered, wrapped in a thick frieze motor coat. He nodded to us briefly. "Sorry to interrupt," he said, "but time's getting on, Tearle. My consultation with Sir Peverly Salt was for half past nine, if you remember. It's that now." "Oh, there's plenty of time," said Tearle. "Sit down, Ballard. It's nice and warm in here." "It may be nice and warm," replied Mr. Ballard loudly, "but I don't want to keep Sir Peverly waiting." "I don't see why you shouldn't keep him waiting," said Tearle. "In fact I really don't see why you should go to him at all." Mr. Ballard stared for a moment. Then his eyes travelled round the table and dwelt first on Sarakoff and then on me. I suppose something in our manner rather baffled him, but outwardly he shewed no sign of it. "I don't quite follow you," he said, fixing his gaze upon Tearle again. "If you recollect, you advised me strongly four days ago to consult Sir Peverly Salt about the condition of my heart, and you impressed upon me that his opinion was the best that was obtainable. You rang him up and an appointment was fixed for this morning at half-past nine, and I was told to call on you shortly after nine." He paused, and once more his eyes dwelt in turn upon each of us. They returned to Tearle. "It is now twenty-five minutes to ten," he said. His face had become redder, and his voice louder. "And I understood that Sir Peverly is a very busy man." "He certainly is busy," said Tearle. "He's far too busy. It is very interesting to think that business is only necessary in so far----" "Look here," said Mr. Ballard violently. "I'm a man with a short temper. I'm hanged if I'll stand this nonsense. What the devil do you think you're all doing? Are you playing a joke on me?" He glared round at us, and then he made a sudden movement towards the table. In a moment we were all on our feet. I felt an acute terror seize me, and without waiting to see what happened, I flung open the door that led into my consulting room, darted to the further door, across the hall and up to my bedroom. There was a cry and a rush of feet across the hall. Mr. Ballard's voice rang out stormily. A door slammed, and then another door, and then all was silent. I became aware of a movement behind me, and looking round sharply, I saw my housemaid Lottie staring at me in amazement. She had been engaged in making the bed. "Whatever is the matter, sir?" she asked. "Hush!" I whispered. "There's a dangerous man downstairs."