White Walkers, wights, and the blue-eyed beasts who ... This is going to come in handy -- it is known. The summoned army of wights and Walkers announces its arrival with a booming winter stormcloud.

But an eagle-eyed Redditors caught a connection that hints at a huge, much more mysterious reveal from the White Walkers next episode. SEE ALSO: Who are the Children of the Forest on 'Game of ...