What are the wights of Barrow-Downs?

[Celebuial]

Ibelieve that they perhaps might have been sacrificing them, to create more bodies for other unanimated spirits, intersting point. But this is merely my oppinion and is up to speculation by anyone.

I always wondered about this, I think that this is probaly the best reason I've heard, not that I've heard many mind you. It seems to make sense and fit nicely.