These people were all People (as they name themselves in their language). The bucket-emptiers belonged to a separate subcaste from the bullock-spanker, but both could trace their lineage back for a hundred generations to the same ur-Person. And even if Sword of Divine Fire had not already known as much, it could have been guessed from following a given bucket-load of water downhill, and observing the scenery on either hand. For thousands of years’ hourly bucket-emptyings had cut a meandering drainage channel into the dust. It careered and zigzagged for a mile, heading generally eastwards, until it petered out in a crazed salt-pan, which sported the locally renowned Large Hole in the Ground, and other improvements. In most places, a grown man could comfortably plant one foot on either side of the channel. In some parts one had to jump over it. In one stretch it spread out so wide that one needed a running start. Consequently the local children never wanted for sports and entertainment.