The Festering Dark Map
Each Warding Brazier in the stronghold activates a Lantern, which Diablo 4 Items follow a set path, illuminating the area and removing barriers at the end. On the map:
Colored circles correspond to Warding Braziers.
Arrows show the Lantern’s path.
Colored lines indicate barriers removed by the Lantern.
There are two extra levels to explore:
Skittering Darkness
Vile Darkness
Each level has two entrances/exits, located at either end.
The Festering Dark Location
The Stronghold is situated to the south of Nahantu. Approach from the east until you see the stronghold icon on the map. You’ll find a path leading underground at the cave’s entrance.
Walkthrough
Entering the Stronghold
Descend the cliff and enter the cave’s mouth.
Interact with the necromancer’s corpse to pick up the Reliquary Lantern. This item is essential for exploring the stronghold.
While holding the Lantern, you can only use Rathma’s Ire, an AoE Shadow Damage ability that drops the Lantern upon casting.
Runes of Trag’Oul scattered throughout the area allow you to resummon the Lantern if lost.
Move north to the first black tendril barrier and use the Lantern to buy Diablo IV Items dissolve it. Climb the cliff to continue.