Tol-in-Gaurhoth Threefold and Six: The Night Guard

[Pitchwife]

Originally Posted by McCaber

The night that the sun rose early, I guarded Nilp. Just on the off chance that it actually was a save and not something like the wolves not sending in a kill or one of those other special abilities.

I think it's clear that no save occurred that Night, as Eönwe said he would mention a save in the narration. So Nilp can't have been the wolves' target - there must be another explanation.
Talking about those secret roles again, I'm wondering whether we're ever going to find out about them. Has anybody else noticed Nog's armour and sword in last Night's narration?