If the Watchers rule the Void...
Does this mean the Black Ice is actually True Ice corrupted by the Void?
And the Iceborn
are humans altered by the Void
too? This would explain why they look so pale-blue, and their lifespan. But why Iceborn and Frozen Watchers use ice magic instead of Void Energy? is it because the Watchers adapted to the Freljord's icy weather when they came from the Void?

were to be corrupted,she would be like a vessel for the Watchers until they're set free.