Stealer of Souls is the 4th quest in The Essence of a Dragonstory arcStory arcs are chains of quests that make up a story line. Completing everything in a story arc often yields a nice reward..
The first three quests can be completed in any order to unlock Stealer of Souls.
Flagging occurs by collecting dedicated items rather than completing these quests.
The dragon Ternathear opened a portal for you to Sor'jek's hidden lair. In return, he bid you to prevent as many dragon souls as you can from being turned into liches. In particular, the draconic Prophecy indicates that all of Argonessen may fall if Sventusk, the warrior dragon, becomes a lich.
Then go to Captain Agamon on top of the Airship Tower in the Marketplace); he gets you to Siber Atoll. Jump down from the airship, swim down into the water and enter the crevice to enter the Reaver's Refuge town area.
Find the Stormreaver in his Refuge and click on him to complete the Refuge in the Storm quest. He tells you that Sor'jek (formerly known as Tempest's Spine's boss and the Stormreaver's lieutenant) became a lich and must be defeated. Optionally, the Stormreaver can give you a fly buff to reach Ternathear's Inner Lair which is just above the Stormreaver himself.
Thear (in Ternathear's Inner Lair) gives you a quest, The Essence of a Dragon, and asks you to collect gems found in the Exploration Zones. The gems drop out of rare encounter treasure chests in these zones. Once you get gems and turn them in, you don't need to repeat this process until you start a new life. You only need any three of these six gems – note that all three gems must be turned in at once, and they're Exclusive, so you'll need three distinct ones. (Additional gems may be sold.)
After completing this quest once, you may purchase any Dragonshard Essence from Vorace the Dragontouched Vendor in the crafting section in exchange for Draconic Runes
Both gems and Dragonshard Essences persist through reincarnation, so you may spread collecting over more than one life.
Spoiler Warning: Spoiler material below this point!
Objectives
Stop the Ritual
Discover the source of Sor'jek's power
Defeat the elemental masters (Kill 4)
(Failure) Finish before timeout (60 minutes, only timer shown)
Mandatory STR check of ♣16Solo/Casual (root barrier)
Known Traps
Barrier around Sor'jek (1000+ damage, main room)
Falling spikes (untyped damage, earth section)
Cold+Air jets (cold damage, ice section)
Blowing off airstream (no damage, air section)
Tips and Misc
In this very challenging quest you must conquer four very different sections and defeat four elemental masters. It is a timed quest, you must complete it within 60 minutes in order to stop Sor'jek's ritual.
Walkthrough
Activate a rune in the central room to get teleported to an area of an elemental master (only one is active at a time).
In the earth area, defeat 3 elders in the side chambers before proceeding north and facing Bhumi.
In the cold area, optionally pull the levers in the bottom to disable icy air jets, or run up a ramp through the jets to face Jala.
Deactivating an air jet activates all others again.
In the fire area, activate three runes to open way to Agni.
In the air area, deactivate a few runes as you run up some ramps, until you face Pavan.
After defeating each elemental master, there is a chest, a set of shrines, and a rune. Activate the rune to return to the central room.
As soon as you defeat the fourth elemental master, the quest completes.
Fight against Sor'jek
This fight is most of the time one against a single purple named monster. Sor'jek occasionally summons aid in form of a mephit – defeat it as fast as possible.
Spirit of Lamannia creates Sor'jek's Regeneration: Sor'jek is drawing power from one of his familiars, allowing him to heal.
Spirit of Fernia creates Sor'jek's Ritual of Protection: Sor'jek is channeling a protective shield through his elemental spirit.
Spirit of Risia creates Sor'jek's Freezing Shield: Sor'jek is channeling freezing cold though his Risia spirit into a damaging shield.
Spirit of Syrania creates Sor'jek's Speed of Wind: Channeling the spirit of the wind, Sor'jek moves more quickly.
Note: Since the quest is completed, you cannot re-enter the quest to continue if you lose the optional fight with undead Sor'jek.
Bonus XP
Aggression bonus: 33 or more monsters killed +10% Bonus.( ♣534♦925♥960♠996 )
Onslaught bonus: 67 or more monsters killed +15% Bonus.( ♣801♦1,388♥1,441♠1,493 )
Conquest bonus: 100 or more monsters killed +25% Bonus.( ♣1,335♦2,313♥2,401♠2,489 )
Notes: Getting onslaught requires nearly every kill in the quest, conquest requires killing a huge amount of respawns.