Luke chose a location related to the water region and built a dam, then created a place that he would keep constantly moving to prevent the water inside from becoming polluted, filling it with exactly ten thousand gold pieces worth of water.
This dam contained exactly 100 million cubic metres of water, which was constantly in motion. No one was allowed inside. After sealing it off with his special earth magic, Luke transformed the earthen wall into special mythril and stones from the Tholien Mountains, just as he had done when the city was still a village.
The area was nearly 100 metres long from the ground and, with its water-filled interior, stretched horizontally for nearly two kilometres.
This amount of water could comfortably supply nearly one and a half million people for a year, calculated based on each person using 200 litres of water per day, per person. This was an astonishingly large quantity.
