That got the Dwarves excited. They had all sorts of good materials stored from their farms, and they weren't worth much here in town.
When everyone had the same things, the value plummeted. Water was worth more than anything else to most of the farmers, as the supply was greatly limited.
They called it a river that they filled the water wagons from, but it was hardly more than a small stream from a natural spring. With the amount that they used, it only ran for a few hundred metres before soaking into the ground and vanishing.
The rest of the water was all taken away to keep the people alive.
The Sand Trolls needed very little water for themselves, but the crops needed it. Normally, they relied on rainfall, but that had been getting more scarce by the year, to the point that many had already begun to abandon the higher areas.
They would move to a lowland, in hopes that it retained more moisture, or just move to the coast and start over from nothing.
