‘Rails?’

‘Aye, sir. She runs on an iron road, you’ll see.’

Suddenly there was the sound of a banshee on heat as Wally moved a lever.

‘Sorry, sir, you ’ave to let t’steam out. It’s all about ’arnessing t’steam. You heard her singing, sir, she wants motion, power is going to waste while she’s just sitting here. Give me time and allow me to put a test track around your compound. We’ll have ’er running very soon, I promise you.’

Harry was uncharacteristically silent. The thrumming of the machine was like a kind of spell. Again, the metal voice of steam rang out over the compound like a lost soul and he found himself unable to leave. Harry wasn’t a man for introspection and all that rubbish, but he thought that this, well, this was something worth a closer look. And then he noticed the faces of the crowd around the compound, the goblins climbing up to gawp at this new raging devil which was nevertheless under the control of two lads in flat caps and very little to speak of in regard to teeth.

Getting his thoughts lined up properly, Harry turned to Dick Simnel and said, ‘Mister Simnel, I’ll give you two days, no more. You have your chance, mister, don’t waste it. I am, as I say, a busy man. Two days to show me something that astounds me. Go on.’

Dwarfs and men sat and listened intently to the old boy sitting in the corner of the Treacle Miner^[15], human, possibly, but with a beard any respectable dwarf would have coveted, who had decided to share with them his knowledge of the treacle-mining world.

‘Gather round, lads, fill my pot and I’ll tell you a tale that’s dark and sticky.’ He looked meaningfully at his empty tankard and there was laughter as it was replaced by some well-wisher and, as he sipped his ale, he began his tale.

Years back, unexpected deep treacle reserves had been discovered under Ankh-Morpork, fathoms down, and as every treacle miner knew, the lower the treacle, the better the texture and therefore the better the taste. In truth, and in Ankh-Morpork at least, there was very little friction between dwarf clans on this matter, and the question of who would be allowed to mine the discovery was amiably dealt with by the old boys, dwarf and human.

Everyone conceded that when it came to working underground there was nothing like the dwarfs, but, to the dismay of the older miners, very few of the dwarf youngsters of Ankh-Morpork were at all interested in mining under any circumstances. And so the grizzled old boys welcomed any local miners of any species to work under the venerable streets of Ankh-Morpork, for the sheer pleasure of seeing treacle being properly produced again, and the miners, whoever they were, went about their sticky business in the search for the deep shimmering treacle.

And something happened, somewhere up near the Shires, where the dwarf miners had been working a reasonable seam, part of which was under land which at that time belonged to the Low King of the Dwarfs. In those not too distant days political relationships between human and dwarf were somewhat nervy.