Directly to the south of the Pill Array, a vast square stretched out. Standing in the centre of the square was a gigantic crystal stone, as tall as two people. Its form was uneven, yet it broadly took the shape of a column.
This crystal was guarded by four stewards of the Pill Alliance. They did not prevent onlookers from approaching, but touching the stone was strictly prohibited.
This stone was known as the Gold Testing Stone. As the name suggests, it could test to see who was true gold.
Of course, by "gold" it didn't refer to the ordinary metals in the secular world, but talented pill refiners.
This Gold Testing Stone could accurately assess a pill refiner's talent, so it was often used by the Pill Alliance to evaluate talents in pill refining.
This stone, however, was extremely rare. Within the entire span of the Lower Three Kingdoms, only Black Cauldron City possessed one. Even in the capitals of the three kingdoms, there was none.
