Unspeakable, Unknowable

Overview
Summary
 * 1) Return to the ancient ruins of the Great Destroyer.
 * 2) Destroy Hierophant Morlog before he learns the true name of the Great Destroyer.
 * 3) Return the Tome of Rubicon to the ancient ruins. Drop it where High Priest Alkar awaits.
 * 4) Collect 4 shards of Balthazate crystal and place them near High Priest Alkar. Be sure to protect the High Priest from enemy patrols.

Obtained from
 * High Priest Alkar in Sorrow's Furnace.

Requirements
 * You must first lead High Priest Alkar to Sorrow's Furnace as part of To Sorrow's Furnace.

Reward
 * 8000 XP

Dialogue
 * "The Stone Summit are dangerously close to uncovering the Tome of the Rubicon. Inside is the true name of the Great Destroyer, the bane of the living and nemesis of the Great Dwarf himself.  If the seals that bind that book are dispelled and the true name spoken... well, let's just say there is no worse thing that could happen in this world.


 * I could use yer help gaining entry to Sorrow's Furnace and stopping the Summit from getting their hands on the Tome. Will you help me?"

Follow Up:
 * None

Walkthrough
Warning: High Priest Alkar must survive! If he dies, the mission fails and the whole party is sent back to the Deldrimor War Camp.

Follow Alkar through the Furnace and watch not to lure too many groups at once. At one point in the quest, Alkar will ask your party to split up. One group will need to stay and defend him, while he recites a spell. The other group will need to find and bring back four Balthazate crystals to complete the quest. For this reason, you will not be able to complete this quest when accompanied only by henchmen.

Priest Alkar is a powerful healer though and heals party members, so he's usually safe with 2 or even 1 party member staying with him to fight back occasional enemy patrols. The rest of the party can go and get the crystals (which is the tougher part of the mission).

Tip: Defending Alkar can be accomplished with a single well-prepared warrior. Alkar will provide ample healing as long as the warrior stays in range, and the attacking enemies will focus on the warrior as long as he/she is doing damage. The warrior can help by bringing a few defensive stances and an AoE spell from his secondary profession.