created the NK to help them against the realms of Men...

bc I had a post written why the hell the 3ER was hiding so far north of the wall. if the NK comes and his main goal is to kill the 3ER, why wouldn't they be at least by the wall... but following the logic i'd imagine the CotF wanted to protect the 3ER away from the men/wall.

i feel like with or without Bran, NK woulda found them and killed them anyway. perhaps that is why the 3ER found him early on to get him up there and school him so he could escape south in time.