Laergil is concerned by the spiders which infest Talath Ondren.
'Talath Ondren, the region of Haudh Lin to the east, was once known as the Shipwright's Grove in Westron, and it is there that many of the famed vessels of the Elves were built in days long past -- but the corruption that haunts it now is much greater than I or my brothers had imagined. Something malignant and evil lurks there now.
'Something must be done. If you would help me, then seek out the spiders that infest Talath Ondren east of here and collect the sticky spinnerets they use to ensnare their victims.
'It will take me time, but I may one day discern where these terrors gain their potence.'
Talath Ondren is east of the Grimwater. Defeat the spiders there and collect their spinnerets.
Laergil has asked you to slay the spiders infesting Talath Ondren to collect their spinnerets. This will help her find out where the fiendish things derive their strength.