O.M.G. Wait just a sec whilest I catch my breath before I can write coherently.
Okay ... Spoilers to follow ... I'd lost track of the new postings on this story and fell behind, so am just catching up this afternoon, but by Illuvatar, Ziggy! this beats all. My skin began to crawl in the last chapter and is still doing so.
The form of your poison takes is ingenious. That it echos the most hideous form of torture in Mirkwood as well, makes it that much more abhorrent to Legolas and an equisitely refined crucible for Elrohir's redemption. Though I will freely admit, as a reader, I would not have been unhappy even if he had gone through the door. It was what I expected, which made the turning that much sweeter. I would even have been able to accept the elf's following him if that had been the path you chose, because great love, as you've portrayed it throughout this story, knows no boundaries.
I'm very glad you didn't choose that path! But I would have followed you - even unto death. :-)
Loved the teeny bit of foreshadowing for Elladan's story and I must say again how cleverly you use the device of cutting scenes so the reader moves three steps forward in one character's POV, then takes a step back into another character's POV. If not done right, that can get tiresome for the reader, but you have honed it to perfection.
I'm sooooooooo looking forward to the wrap party for this fic! Can't wait to see this AU resolves itself!