"Ozzie, I'm surprised at you!" they heard him say with severity. "I thought you were a better sportsman than to go playing the fool the one night I'm out. If you want to frighten people, do it where you don't damage their property; if you mean murder, I'm your mark, my lad! Aim at my waistcoat buttons and perhaps you'll get me in the mouth; that's better; now blaze away!" But the pink-striped miscreant was not lowering his barrel to improve his aim. He lowered it altogether. And his other wild eye was open now, and both were blinking with unlovely woe. "I--I didn't mean any harm," he faltered. "It was only a rag--and I'll pay for the door." "It'll be a great rag, won't it, if you fire bang into your own foot? Better give me that thing before you do." Dollar held out the steadiest of hands. "No, t'other way round if you don't mind; 'tisn't manners to pass knives and forks business-end first. Ta! Now make yourself scarce before Barton goes for you by kind permission of his family." The young man in pink stood wildly staring, then fled up-stairs with a smothered sob. "After him, Barton, before he does something silly," said the doctor under his breath. "My dear Mrs. Barton, you shall tell me the whole thing from A to Z in the morning; go down to bed like a good soul, and be satisfied that you prevented bloodshed. Bobby, take one of the decanters from the tantalus and give your mother a good nightcap." He turned round as the unpresentable pair made off. The street-door was shut; the Home Secretary had sole possession of the mat. "Why, Mr. Vinson, what's happened to the myrmidon?" "I thought you would like me to get rid of him," said Topham Vinson dryly. "He's waiting outside to explain matters to the reinforcements--as a joke." "Rather an unconvincing joke!" said the doctor, wiping his forehead with the back of his hand. "I'm glad you admit it, Doctor Dollar. Am I to understand that the whole thing was a practical joke, carefully rehearsed for my benefit?" The doctor opened his shining eyes. "Does it look like one? Hark back a little, Mr. Vinson!" "There's no need. I didn't think of it till you put the word into my mouth. But it's well, rather a coincidence, doctor, coming on top of the one about my watch--and you of all men catching the thief!" "Yet this is the sort of thing that's always liable to happen when one's back is turned, and always will be until----" "Yes?" said the Home Secretary, as Dollar paused and looked at him.