Nestled among the webs of the glass-spiders you find a brooch. It features a gren leaf veined with silver. The name Geirfast is engraved in the back. You find it odd that a brooch of Lothlorien bears the name of a dwarf.
You discovered a brooch of Lorien within the spiderwebs of the Waterworks.
Talk to Geirfast in the Twenty-first Hall
Geirfast in the Twenty-first Hall.
The brooch of Lorien you found is marked with the name Geirfast.
If you are looking for the Brooch to start this quest, the easiest way to find it is to go to the mirror where all the glass spiders are. As you go up the stairs and reach the first landing covered in webs, look into the corner behind and to your left (behind a bunch of hanging webs).