The Sixteenth Hall is an area overrun with Orcs, many of whom suffer from a terrible illness that causes fungus-like growths on their bodies.
'I am glad that Veúlfur was able to earn the favour of so stout a warrior as yourself. We are in need of such spirit in this darkened place. The gloom here clouds our sight and disheartens even the hardiest among us.
'Veúlfur likely told you that I am charged with watching the Sixteenth Hall, and with the aid of dwarf and Elf alike, I am cataloguing my findings to report to Veúlfur of any significant movement in this area. If you are willing to aid in our vigil, I will be certain to mention your assistance in my report.
'There is much to be done. I suggest speaking to the others who aid me already. Each can be found here within the Shadowed Refuge. Lar, Ymar, and Odmar are the dwarves who mind the Sixteenth Hall, and the Elves are named Pentlenn and Glorelloth. When you have spoken to them and given them what they need, return to me with tidings.'
The Watchers of the Sixteenth Hall are in the Shadowed Refuge in Moria. The Elves and dwarves you seek are named Lar, Ymar, Odmar, Pentlenn, and Glorelloth.
Mallas has asked you to help his fellows at the Shadowed Refuge do various tasks in the Sixteenth Hall.
The Elf Mallas is at the Shadowed Refuge.
You have completed the tasks set before you by the dwarves Ymar, Lar, and Odmar and the Elves Glorelloth and Pentlenn, and should now bring tidings to Mallas of all that has transpired.