| Icon | Name | Description | 
|---|---|---|
|  | Fiery Dust | Normal Act: 3 A disgusting Undying Blockage prevents passage through the Sewers. Perhaps you can find a way to destroy it, eventually. | 
| # | Name | 
|---|---|
| 1 | Find a way to destroy the Undying blockage A disgusting Undying Blockage prevents passage through the Sewers. Perhaps you can find a way to destroy it, eventually. NPC:  If you manage to destroy it, expect a storm of undeath to descend upon you. The dark is their home, and there'd be nowhere more homely to the Undying than a pitch-swathed drain under a river. | 
| 2 | Find the Thaumetic Sulphite Dialla wants you to bring her the Thaumetic Sulphite. Search the Docks for it and bring it to her. Area: The Docks NPC:  | 
| 3 | You have found the Thaumetic Sulphite Search the Solaris Temple for a use for the Thaumetic Sulphite. Area: The Solaris Temple Level 2 NPC:  Thaumetic Sulphite. That's what you need. You have some already? You are a resourceful Unbug, now aren't you? Give it to me. I was all eyes and ears when Malachai worked. I will make something of your Thaumetic Sulphite. I will forge an Infernal Talc that will bring the most furious of light to the Undying darkness. | 
| 4 | Help Lady Dialla find the Ribbon Spool and perhaps she will shed some light on the Thaumetic Sulphite. | 
| 5 | Bring the Thaumetic Sulphite to Lady Dialla Bring the Thaumetic Sulphite to Lady Dialla in the Solaris Temple. Area: The Solaris Temple Level 2 | 
| 6 | Take the Infernal Talc from Lady Dialla. Area: The Solaris Temple Level 2 NPC:  | 
| 7 | Find a way through the Sewers Find a way through the Sewers. The Infernal Talc may be useful. Area: The Sewers NPC:  They will burn for their sins, Not-a-Cockroach. They will burn! | 
| 8 | Get Clarissa's keys to the Sewers Get the keys to the Sewers from Clarissa. Area: The Sarn Encampment NPC:  | 
| 9 | Burn the Undying blockage with the Infernal Talc Burn the Undying blockage in the Sewers with the Infernal Talc. Area: The Sewers | 
| 10 | Quest Complete Quest Complete - You have used the Infernal Talc to destroy the Undying blockage in the Sewers. You can now get past and access the Ebony Barracks. |