[Bonus] Conqueror of Roud Sulfur Mine!

Description

The Black Spirit wants to teach everyone at the Roud Sulfur Mine a lesson and show them who's the strongest of them all.
Destroy the Lava Phlogiston Condensers and Lava Hydraulic Nozzles at the Roud Sulfur Mine, then talk to the Black Spirit.

※ This quest can be repeated.