With hide from the dragon Bregmor and Celebrimbor's shaping tool, there is nothing more Eglamír knows of that Amarthiel will need to rekindle the forges of Eregion and reforge Narchuil.
'There is no more aid I can give you. With the hide of Bregmor and Celebrimbor's shaping tool, there is naught to keep Angmar from rekindling the forges of Eregion and reforging Narchuil. You have failed, but think not too poorly of yourself... the chances were slim at best.
'You should return to Rivendell and bring this dire news to Elrond Halfelven. Perhaps he will know what to do now.
'Rivendell lies in the Trollshaws, far to the east in the shadow of the Misty Mountains.'
Elrond is at Rivendell in the Trollshaws, far to the east of Celondim.
Eglamír suggested that you bring news of your failure to Elrond at Rivendell.