The Disciples of Shadowlore are fighting their endless battle between light and darkness to work on their expansion of power. The day of judgement, called the Rakdorra, is about to arrive and the races want their fraction to be favored by the gods to ensure their ascension to paradise.
The shale heritage plates are the heir of the gods. When the world was created, 15 unique shale plates were formed to bear the first words of the gods that pronounced the upcoming day of judgement, the Rakdorra.