An anonymous renegade faction published birch bark manuscripts blaming the rigid hierarchical structure of the Priesthood of the Hypergeum. The manuscripts used an esoteric system of runic writing, which they claimed was taught to them in their dreams by Zalthyrmians who had been exiled to those realms. […]

As this egalitarian mystical Romantic Quatrian and even semi-Anthuorian revivalism was considered a threat to the ruling powers during the House of Song, the sect was ruthlessly suppressed, and the birch groves wherein they grew their living manuscripts were burned, and the grounds ritually salted.

Source: Zalthyrmians – Quatria – Medium