The vallorn appeared as part of the disaster that overthrew the cities of a nation named as 'Terunael' in Navarr legends, which may have covered much of the land which is now Empire. From the hearts of those cities, abundant greenery spread, a sick, infectious wave of life that cracked and crumbled stone, shot great trees up through streets and buildings, and warped, twisted and destroyed most of the inhabitants of those cities, scattering the others to the wind.
