War Mage Artius:
Ah! You came because of the favor I asked of Plenos. There's an important mission I have in mind, but I must stay here to safeguard the Barrier Orb. That's why I asked him to gather some capable adventurers.
We must gather information about the Seed of Infinity. You know that the major areas of the Seed of Infinity are guarded by the undead, don't you? I hear that each of these areas is guarded by an especially strong chief gatekeeper.
The Hall of Suffering is guarded by the twin Death Knights Yehan Klodekus and Yehan Klanikus, and the Hall of Erosion is guarded by Cohemenes.You must defeat these chief gatekeepers and bring proof. Through that we might be able to learn some vital intelligence.