Handarod has told you that the Enemy holds the ring Narchuil at Barad Dúrgul. Though it is a minor essay in Ringcraft, it is dangerous nonetheless.
'Though we have recovered Narchuil, Goeolgon yet lives, and is rebuilding his power in Barad Dúrgul. He thirsts for revenge and will soon bring his power to bear upon us if he is allowed to recover.
'Barad Dúrgul awaits, when you are ready to leave, come and speak with me again.'
Handarod is at Esteldín in the North Downs.
Handarod has bid you enter Barad Dúrgul and recover the ring Narchuil.
Gwathryn is at Tármunn Súrsa in Angmar.
You should report to Gwathryn at once.