The orders you recovered from the Angmarim at Barad Dúrgul appear to confirm that Narchuil resides there.
'Barad Dúrgul awaits. If we are to recover Narchuil from the hands of the Enemy, it will take more than your courage alone. You will need to gather allies if you are to assault that keep.
'I will send Narucham ahead to scout the way. You should seek him out as soon as you enter into Barad Dúrgul.
'When you are ready to leave, come and speak with me again.'
This quest is meant for a fellowship. If you choose to undertake this quest solo you will receive an inspiration bonus, but the challenge will be great.
Gwathryn is at Tármunn Súrsa in Angmar.
Gwathryn has bid you enter Barad Dúrgul and recover the ring Narchuil. Narucham awaits you within the fortress.
This quest is meant for a fellowship. If you choose to undertake this quest solo you will receive an inspiration bonus, but the challenge will be great.
Gwathryn is at Tármunn Súrsa in Angmar.
You should report at once to Gwathryn.