The Lure of the Wyrm
It was called the Wyrmberg and it rose almost one half of a mile above the green valley; a mountain huge, grey and upside down.
At its base it was a mere score of yards across. Then it rose through clinging cloud, curving gracefully outward like an upturned trumpet until it was truncated by a plateau fully a quarter of a mile across. There was a tiny forest up there, its greenery cascading over the lip. There were buildings. There was even a small river, tumbling over the edge in a waterfall so wind-whipped that it reached the ground as rain.
There were also a number of cave mouths, a few yards below the plateau. They had a crudely-carved, regular look about them, so that on this crisp autumn morning the Wyrmberg hung over the clouds like a giant’s dovecote.
This would mean that the “doves” had a wingspan slightly in excess of forty yards.
“I knew it,” said Rincewind. “We’re in a strong magical field.”
Twoflower and Hrun looked around the little hollow where they had made their noonday halt. Then they looked at each other.
The horses were quietly cropping the rich grass by the stream. Yellow butterflies skittered among the bushes. There was a smell of thyme and a buzzing of bees. The wild pigs on the spit sizzled gently.
Hrun shrugged and went back to oiling his biceps. They gleamed.
“Looks alright to me,” he said.
“Try tossing a coin,” said Rincewind.
“What?”
“Go on. Toss a coin.”
“Hokay,” Said Hrun. “if it gives you any pleasure.”
He reached into his pouch and withdrew a handful of loose change plundered from a dozen realms.
With some care he selected a Zchloty leaden quarter-iotum and balanced it on a purple thumbnail.
“You call,” he said. “Heads or-” he inspected the obverse with an air of intense concentration, “some sort of a fish with legs.”
“When it’s in the air,” said Rincewind. Hrun grinned and flicked his thumb. The iotum rose, spinning.
“Edge,” said Rincewind, without looking at it.
Magic never dies. It merely fades away.
Nowhere was this more evident on the wide blue expanse of the Discworld than in those areas that had been the scene of the great battles of the Mage Wars, which had happened very shortly after Creation. In those days magic in its raw state had been widely available, and had been eagerly utilized by the First Men in their war against the Gods.
The precise origins of the Mage Wars have been lost in the fogs of Time, but disc philosophers agree that the First Men, shortly after their creation, understandably lost their temper. And great and pyrotechnic were the battles that followed - the sun wheeled across the sky, the seas boiled, weird storms ravaged the land, small white pigeons mysteriously appeared in people’s clothing, and the very stability of the disc (carried as it was through space on the backs of four giant turtle-riding elephants) was threatened. This resulted in stern action by the Old High Ones, to whom even the Gods themselves are answerable. The Gods were banished to high places, men were re-created a good deal smaller, and much of the old wild magic was sucked out of the earth.
That did not solve the problem of those places on the disc which, during the wars, had suffered a direct hit by a spell. The magic faded away slowly, over the millenia, releasing as it decayed myriads of sub-astral particles that severely distorted the reality around it…
Rincewind, Twoflower and Hrun stared at the coin.
“Edge it is,” said Hrun. “Well, you’re a wizard. So what?”
“I don’t do - that sort of spell.”
“You mean you can’t.”
Rincewind ignored this, because it was true. “Try it again,” he suggested.
Hrun pulled out a fistful of coins.
The first two landed in the usual manner. So did the fourth. The third landed on its edge and balanced there. The fifth turned into a small yellow caterpillar and crawled away. The sixth, upon reaching its zenith, vanished with a sharp “spang!”