Black Rock Quarry Control. If you dont have an unlocked fast travel point start at the Black Rock Quarry located south of the Forbidden Zone. I tried seeing if I needed to go through the furnace chamber through the ventilation outcrop but the door is locked there.
Im going mad trying to find the entrance. You want to start at the Quarry Entrance. Hiss Corrupted Thomson is in the Black Rock Quarry itself.
Defeat Hiss Corrupted Thomson Old Friends Control Guide.
At the top kill the enemies on the walkway and keep. Use evasion and flight to go past them. Black Rock Quarry Hidden Location. Check out our Control Threshold Find the Black Rock Quarry Walkthrough Part 25 to see how to make it to the Quarry through the rabbit warren of the building.