Cabed hopes that the Easterling-blade and the red-tipped arrow will force action to be taken against the inhabitants of Ost Celebrant.
'I have done all that I can to aid you. This arrowhead and blade should be all you need to spur your allies to action. If it does not, I fear the field will again fall to the enemies of Gondor.
'Take this to them with haste, each moment you do not act only gives the enemy more time to prepare.
'Consider my duty fulfilled, even if my spirit remains. Farewell.'
Idmar is at his camp along the road in central Parth Celebrant.
You should bring the items to Idmar.
Doron is among his men on the crest of the hill in western Parth Celebrant.
Idmar wants you to speak with Doron regarding the Easterling.