"But you will have to be very lucky," said Mr. Amberley gently.

The sergeant looked at him suspiciously and pondered the remark for a while in silence. Having considered it carefully he said with some indignation: "It don't surprise me to hear you make a lot of enemies, sir. Not that I'd be one to take offence, because I know you will have your joke. But there's a lot of people mightn't like the way you have of saying things. Now if I didn't know you like I do, I wouldn't tell you what I'm going to. But you gave us a tip or two over that robbery case we had when you were down here, and freely I admit it."

"Yes, you made a bit of a mess of that, didn't you?" said Mr. Amberley. "Still got that chuckle-headed inspector at Carchester, I notice."

The sergeant grinned. "He'll be getting promotion soon. Maybe I will too."

"What for?" asked Mr. Amberley, interested.

"Solving this murder case, sir."

"Oh!" said Mr. Amberley. "Well, don't let me waste your time. You run along and solve it."

"That's just it, sir. I thought that you, having a bit of a knack of hitting on things, in a manner of speaking, and making a sort of hobby of it - well, what I thought was, I might do worse than tell you what's puzzling us."

"You might, but if you imagine that I'm setting up as an amateur detective…'

"Oh no, sir, nothing like that. Though when you spotted it was Bilton had those diamonds I must say that I did think to myself that you were fair thrown away in your profession. Of course, you happened to be present when the theft took place, which was an advantage we hadn't got. Still, I will say it was a very neat bit of work, Mr. Amberley, and we were all very grateful to you, because it was touch and go whether we called in the Yard or not."