This is really for the attention of Bethesda, or anybody who may be taking note of glitches.

I collected all three amulet segments and travelled to Reachwater Rock to reforge the amulet. After defeating the ghosts of the three sons, nothing happened - the ash piles (from my lightening attacks) remained on the platform just above the amulet pedestals but nothing happened. I reloaded and completed the battle again; this time the ghost of Jyrik (the last of the three brothers) respawned on this same platform, showed up on my radar and displayed a full health bar but did absolutely nothing - wouldn't take damage, wouldn't attack me, just stood there in an idle stance.

Thankfully, after doing this a few times with no luck, I saved the game *after* beating them all, reloaded it and the quest continued with the ghost of Geirmund appearing as detailed in the wiki.

Perhaps this has something to do with me having the 'disintegrate' perk which caused them to create ash piles instead of...ghost corpses. I don't know, but, while it's easily remedied, it was *very* worrying as this particular battle locks you in the hall and my only rcent saved games were past that point! I thought I was going to have to reload a saved game from hours and hours before that. Scarier than any reanimated corpse, I can tell you that.

-RiC