Soulforge

The dwarf guard only lets you below Durok's ruins once you come back from the dragon expedition and tell Durok you spared the wyrm. He then pulls the guard off the entrance. How this works if you kill the dragon instead, we cannot confirm. Expect strong enemies down here, so sort out your gear and brewed potions back in the camp before you descend.

In the Outer Halls you reach a room with braziers and two plaques, Seal of Yellow and Seal of Purple. The yellow seal answers to a red and a green flame, the purple one to red and blue. Don't be fooled by the brazier that already looks purple – on its own it won't solve the purple seal. The right combinations reveal a hidden route to a chest. That's an optional detour; for the main route, come back and take the other way out of the room.

The main corridor ends at a gate with eight sockets for key spheres. Four blue spheres come from the East Garden, which you reach from Soulforge itself, and four more from the West Garden beyond the connecting tunnels. Until you hold all eight, the gate stays shut and there is no way on.

Return to the gate with the full set. Behind it the route continues into the Soulforge Depths and from there down into The Furnace. So Durok's expedition doesn't end at the entrance: the whole loop is the gardens, the gate, the Depths and finally the furnace. The second teleport stone for the Waystone network lies in the north of the West Garden, so the gardens are worth walking properly even if you are only there for spheres.