I was on the point of distributing bad marks (the schoolmaster's stand-by) broadcast, when a curious sound checked me. It followed directly upon the opening of the front door. I heard White's footsteps crossing the hall, then the click of the latch, and then--a sound that I could not define. The closed door of the classroom deadened it, but for all that it was audible. It resembled the thud of a falling body, but I knew it could not be that, for in peaceful England butlers opening front doors did not fall with thuds. My class, eager listeners, found fresh material in the sound for friendly conversation. 'Sir, what was that, sir?' 'Did you hear that, sir?' 'What do you think's happened, sir?' 'Be quiet,' I shouted. 'Will you be--' There was a quick footstep outside, the door flew open, and on the threshold stood a short, sturdy man in a motoring coat and cap. The upper part of his face was covered by a strip of white linen, with holes for the eyes, and there was a Browning pistol in his hand. It is my belief that, if assistant-masters were allowed to wear white masks and carry automatic pistols, keeping order in a school would become child's play. A silence such as no threat of bad marks had ever been able to produce fell instantaneously upon the classroom. Out of the corner of my eye, as I turned to face our visitor, I could see small boys goggling rapturously at this miraculous realization of all the dreams induced by juvenile adventure fiction. As far as I could ascertain, on subsequent inquiry, not one of them felt a tremor of fear. It was all too tremendously exciting for that. For their exclusive benefit an illustration from a weekly paper for boys had come to life, and they had no time to waste in being frightened. As for me, I was dazed. Motor bandits may terrorize France, and desperadoes hold up trains in America, but this was peaceful England. The fact that Buck MacGinnis was at large in the neighbourhood did not make the thing any the less incredible. I had looked on my affair with Buck as a thing of the open air and the darkness. I had figured him lying in wait in lonely roads, possibly, even, lurking about the grounds; but in my most apprehensive moments I had not imagined him calling at the front door and holding me up with a revolver in my own classroom. And yet it was the simple, even the obvious, thing for him to do. Given an automobile, success was certain. Sanstead House stood absolutely alone. There was not even a cottage within half a mile. A train broken down in the middle of the Bad Lands was not more cut off.