With Golodir's aid, you have greatly weakened Mordirith, the Steward of Angmar, and avenged the death of Lorniel.
'This victory is an important one, though not as complete as I had at first hoped. However, even this victory will give us a brief reprieve from the onslaught of the Enemy. I would ask that news of our success be brought to my chieftain, Aragorn, son of Arathorn.
'You have met him then? He is at Rivendell? Go, then, to speak with my Lord Aragorn in one of the guest rooms along the road that winds up the southern slope of the Vale of Imladris, and tell him of our deeds here.'
Aragorn is at Rivendell in the Trollshaws, in one of the guest rooms of Elrond's House.
Golodir instructed you to take word of Mordirith's fall to his chieftain, Aragorn.