Currently this shared task cannot be completed due to a bug. At the point when you enter Tsaph's chamber and speak to Una Lucem, you're supposed to hail Una Lucem a few times then she becomes attackable...however, this step is bugged and Una Lucem NEVER becomes attackable. Hence, this quest cannot be finished. SIDE NOTE: Oh, btw, as I was about to hit Create Thread on this post, I was just kicked to Character Select for the 3rd time in the past few hours of gameplay...so more than likely related to the extremely UNSTABLE server conditions the past 12 hours or so where people are being kicked to Character Select, quests can't be finished, zones won't load, and when people get logged back in that had pets they are gone as well.
