Interact with the three lightning drills in the Ghost Iron Mines to destroy them, and kill Metal Lord Mono-Han.
The mines north of here are being used to extract Ghost Iron ore and energize it with lightning energy. We need to destroy the drills they use to extract the ore. They are impervious to normal attack, but can be overloaded using the proper methods. Oh - and while you're there, take out whoever is running the operation.