The other lore deviation in this scene is the Barrow-wights themselves, which Tolkien wrote were sent to the Barrow-downs by the Witch King of Angmar early in the Third Age and not by Sauron early ...

Amongst the aforementioned Season 2 debutants are undead foes the Barrow-wights, Wraith-like figures introduced in J.R.R. Tolkien's The Fellowship Of The Ring, but never seen before on screen ...