End Dolvaethor's Menace

We have learned some troubling news, ${PLAYER}. It seems that Dolvaethor, one of Amarthiel's Black Númenórean lieutenants, has entered Haudh Valandil. I can think of no good reason for Dolvaethor to enter the tomb, but many terrible ones!

Whatever Dolvaethor plans within the depths of wise Valandil's crypt, he must be stopped. You must do this, ${PLAYER} -- fighting your way across the bridge of Ariant and onto the island upon which sits Ost Elendil and Haudh Valandil will be terrible, but the Dúnedain lack the force of arms needed for this task. You and your allies, however, might be able to fight through.

Once you have defeated Dolvaethor within Haudh Valandil, set right whatever harm he has caused, then return to me. If the course of battle has drawn me elsewhere, speak instead to Captain-General Daerdan at Echad Garthadir.

Description
Stage 1

Dolvaethor is inside Haudh Valandil on the island upon which stands Ost Elendil, beyond the bridge of Ariant, in Annúminas.

Glangilith has asked you to defeat Dolvaethor and put an end to whatever evil he plans for Haudh Valandil.