This quest unlocks additional darkness hunts past OW allowing you to get greater XP/h and more darkness shards to upgrade your gear. It is extremely difficult and takes a long time to complete and might not be doable without a proper setup or a big team.

Completed Minervas Tomb Quest (rift knife)
Prestige 5 or higher (you cannot enter before P5)

Minimum 600 35oz vials of blood (if you fail the mechanic with these you need to get more. Recommended to get double the amount)
Minimum 100 dark matters for magic purp potion (if you die in the quest you need a new one)

Buy a magic purp potion from Lestrange. You must visit him and trigger the cinematic to proceed with this quest.

Go to OW and in each corner there is a grate you can enter.

Use your potion here and run into the middle.

Enter through the grate.

Rightclick portal.

Go to each outside seal and kill enemies until you reach 100%. You need to get 100% on each OW seal (4 in total).
Once you reach 100% the warleader boss spawns in the regular location. You must attack each one or it will not progress.

Every 30 minutes a vampire NPC will spawn on a random world in the outside fire seal.
The vampire will stay for 10 minutes.
Look at the sign at the entrance of the fire seal if it says “They were seen near this region” means the vampire is on that world.
If the sign does not say this the vampire is on another world.

The vampire can be found somewhere in the fire seal, usually in a corner.
Once found, trade him and buy AT LEAST 4 bloods (more is recommended).

Once you got the enflamed bloods from the vampire go upstairs in the castle and go through the portal and the book.

Add these 3 items to auto loot:
Bone 2230
Big bone 2231
Skull 2229
You need 1 of each and the monsters drop them.

Go to the bottom south and click the lever (an altar will spawn in the middle).

Now you need to use the bloods you bought on 4 trees, this is timed so once you use it on the first one the timer starts.
Look at the image to see where they are(each of the 4 corners).


Once you succeed the trees go into the middle and put the 3 bones/skulls on the altar to spawn the boss.

Enflamed dark wraith will periodically go immortal. You need to kill three fires (not the combat pillars that explode) that he spawns around the area to remove his shield. There will be a warning text saying “The wraith spawned three objects that make him immortal!!!”

Add this to autoloot:
Snowball 2111

Kill monsters in the middle of the pillars, once they die they leave ice in certain spots. You want to form a “snowflake” with the ice.

Put a snowball that you looted from the monsters on the ice in the middle to spawn a monster. Kite the monster to the boxes (there are 4 and its random).

Once you find the hidden lever in one of the boxes you need to use a snowball on all the ice you created in the middle and pull the lever to spawn the boss.

Frost dark wraith has the same mechanic as the fire one, kill the 4 snow pillars in the middle and he can be damaged.

Add this to autoloot:
Venomed seed 7732

Go up to the highest floor, you need to click all 12 levers and its timed.

Rightclick the venomed seeds when you're next to a sulphur/acid pool to make it into an enchanted seed.
Once you have 4 enchanted seeds go to the bottom and put 4 corpses on each of the crystals next to the altar (TURN OFF TARGETING IN BOT) and put a seed on each corpse to spawn the boss.

Venomed dark wraith works the same, spawns 2 objects (flowers) kill and then kill boss.

Add this to autoloot:
Crystal energized 7281

Farm the monsters for the crystal (you might need 20+).
Go up to the highest floor and use a crystal on yourself. It will indicate how far away you are from the invisible crystal.

Once you find the crystal you kill monsters to spawn tentacles.
Use a energized crystal on the crystal.
It will indicate a color, kill the same colored tentacle. (if you kill the wrong one you need to use another crystal).

Once you've done 8 crystals the boss spawns at the bottom.
Static dark wraith has the same mechanic as the other ones, kill his object to make him take damage. (its a crystal in the middle of the pillars).

Go back out from the book to the outside and find a yellow portal in one of the seals and right click it.
Kill monsters in here like you did at the start (doesnt matter what seal you use, they all count towards the boss).
Once you reach 100% a portal will spawn in the middle that takes you to the boss.
The boss hits really hard and has mechanics.
Once boss is dead you're done.

You receive the spell Dimensional Finder, helping you locate darkness areas.