Sickle-flies pervade the High Moor, bringing the threat of disease...and possibly a cause for the lynx' feral behaviour.
'${PLAYER}, while I am most concerned with provisioning and outfitting our visitors, I am troubled by something else. The lynx which dwell upon the High Moor have become feral -- no doubt due to the shadow rising in the East. Unfortunately, they pose a great threat to those who journey to Rivendell seeking refuge.
'However, there may be another possible cause that I would have you investigate. Stinging sickle-flies have begun to come up from the riverbanks, bringing the threat of disease...but their incessant stinging might also be a cause for the lynx' aggression.
'Perhaps if the sickle-flies were purged, the lynx might find peace.'
Sickle-flies infest the High Moor in the Trollshaws.
Canaddal has asked you to purge the High Moor of sickle-flies.
Canaddal is encamped on the High Moor in the Trollshaws.
You should return to Canaddal and let him know that you have done as he asked.