When a secret is known by a second person, it's no longer a secret.
The best way to prevent the spread of unknown dangers through knowledge and information is to take the secret to the grave yourself!
Even though Saranthe was reluctant to elaborate, Byron could infer a hint of truth from the taboos he mentioned and the current state of the Transcendent system in the 'Dragon Court' and 'Hundred Beasts Paradise'.
During the Mythological Era, there must have been exchanges between the continents. All changes likely stemmed from the great flood that occurred during the turn of that era.
