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Fallen Nergal

Enter Diabolic Valley through Pandora in the Land of the Dead to find Nergal.
 

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Introduction

Nergal was undefeated as long as he wielded the Gramr sword, even Pandora knew of him, but he disappeared. In order to release all the power of the Gramr sword you must find Nergal. All anyone knows is that he retreated to Diabolic Valley. Seek him there.

NPC Dialog

You are correct, this is the Gramr Sword, though it's
power has been locked away. Nergal was very
powerful even without this sword, but he
disappeared... I heard he may be in Diabolic Valley
seeking new avenues of power. I can teleport you
there, then it is up to you to find him and convince
him to unlock the Sword's power.

Quest Completion

Not enough. I need more power, is there any thing
that can satisfy me?