Wyrm of the Forged Vale

The vale forges everything, even its predators. The Wyrm is the proof. The archivists hold that it was not born in the Vale but made there, the way the BoltForged were made, and that the Vale has been making them longer than it has been making Sentinels. Trivexa hatched from the same ground. The furnace at Skullforge Hollow has never cooled and the Wyrm has never left it.

Metallurgy made serpentine, layer by tempered layer. In the public record.