Demon Assassin

Overview
Summary:
 * 1) Destroy the Reaper Slayer before it reached the mountain top.
 * 2) Return to Reaper of the Twin Serpent Mountains for your reward.

Obtained from:
 * Reaper of the Twin Serpent Mountains in The Underworld

Requirements:
 * Clear the Chamber
 * Free the Reaper of the Twin Serpent Mountains by killing the Terrorweb Dryders around Grenth's statue in the Twin Serpent Mountains.

Reward:
 * 10,000 XP

Dialogue:
 * "These demons are relentless. I can see that they are preparing to attack me once again. My lord Grenth has granted me power over spirits, but I have no defense against the sort of bone creature they will likely use. If you have come to the underworld to gain favor with Grenth, then do not abandon our cause now.


 * "Hurry down the path and destroy the Slayer before it reaches me."

Follow Up:
 * None

Walkthrough
As soon as you take this quest, the Slayer will spawn at the base of the mountain and hurry up the winding path. Go down to meet it and fight it. A few Keepers of Souls may be trailing behind it. They are not a nuisance and as long as the Slayer is busy engaging your party, you can actually ignore him and focus your fire on the Keepers first.

The fight maybe long but is not difficult. After killing the beast return to the Reaper for your reward, or hold on to it to erase Death Penalty later on.