In the shadow of Amon Sûl, at the edge of Nain Enidh, lay an Arnorian ruin. Those ruins afforded the Eglain of Ost Guruth a wealth of material to trade with collectors in Bree-land... until the arrival of half-breeds from the South.
'Your efforts on behalf of the Eglain are noble, my friend, but I deem our peril is greater than first we thought. These half-breeds bear a standard with the mark of a white hand? Ordinary brigands and ruffians do not bear such charges. The mark of the White Hand tells me they serve a greater master.
'Whatever their purpose, such creatures cannot be allowed to take a foothold in the North. They do not belong here. If you can enter Naerost and slay Hontimûrz, their leader, and his guards, perhaps the rest will flee.
'Hontimûrz became known to us when he sent us gifts of the dead with his crudely-scrawled threats. I think, that you are here to avenge that disservice and restore more faith to the Eglain.'
Naerost lies just east of Weathertop, north of Hunulf Munce.
Hunulf Munce is concerned that the half-orcs are servants of a greater power, perhaps even Mordor. He has asked you to enter Naerost and defeat their leader and his guards in hopes that the rest will flee.
Hunulf Munce awaits your return at his camp on the east side of Minas Eriol, south of Naerost.
Though the half-orcs did not flee, their leader and his guards have been defeated. You should return to Hunulf Munce with the news.