The Heavenfire Skycrossing was a unique weather pattern in the Moonrite Region. Opinions differed about why it occurred. Some people said it was akin to a tide flow caused by the pull of the red moon. The reason for that theory was that Heavenfire Skycrossing occurred more frequently when the red moon was nigh. Other people claimed that the red moon, which had been subdued by an Imperial Sovereign long ago, would soon make a comeback.9

Whenever the Heavenfire Skycrossing appeared, all of the Moonrite Region would be lit up brightly. A sea of flames would roll across the dome of heaven, starting in the west. The further east you got, the brighter and hotter it became. At the same time, rains of fire would appear, sometimes heavier and sometimes lighter, depending on the specific location. It would last for a few months, and then the sea of flames would retreat to the Heavenfire Sea in the east. That was considered a full cycle.5

During that time period, all locations in the east, other than locations like Lesser Shrine, would be set aflame by the fiery rains. Everything turned to ashes, from cities to vegetation. That was why the cities of the Twofold Alliance were mostly constructed from clay bricks. Only their jointly-owned Holy City was strong enough,...8