Obsidian Cape is the coolest-looking item in the game, but it is hidden behind a specific quest titled Brink of Extinction in the Umbral Sands that you must complete to unlock it. Like many quests in RuneScape Dragon Wilds, this quest is quite long, and it has many elements that can be a bit confusing at times, so here we will break down each step of the quest to give you a full walkthrough of the Brink of Extinction quest and how to obtain the Obsidian Cape in RuneScape Dragon Wilds.
Where to Start Brink of Extinction in RuneScape Dragon Wilds

The Brink Of Extinction quest unlocks on speaking to Zi in the Burning Spire area in the Umbral Sands region. Once you are in the region, head to the north section of the map, marked on the image above, to talk to the specific NPC and agree to teach him the way of survival in the desert. Now we will take on multiple objectives and complete them to finish the quest and grab the reward at the end. Here is the list of objectives for Brink of Extinction:
- Getting Three Raw Beltfish and One Cactus Steak
- Touch four pedestals in the Gauntlet of Fire
- Enter the Cave of Screams using the password
Tip: I will highly recommend installing a solid Loadstone around Zi’s spot for a quick travel, as you will be coming back to the spot to talk to Zi after completing the objectives.
First Objective: Getting Three Raw Beltfish and One Cactus Steak

Our first objective is to get one Cactus Steak and three pieces of Raw Beltfish.
- Cactus Steak Location: Look out for bunny-shaped cactus in the desert, watch out for the Y-shaped cactus to get Cactus Steak. You will find a good number of them in Alcarrid Oasis.
- Raw Beltfish Location: Gather by fishing in any rivers and lakes on the map. Just head to the spot, pull out your Yew-Road with Kalphite Bait.
- Feathers (x1) + Desert Thread (x1) + Kalphite Ichor (x1) to craft a Kalphite Bait.
Now head back to Zi and hand him all the requested items, and you will get a new objective.
Second Objective: Touch four pedestals in the Gauntlet of Fire

There are four pedestals in the area, and each one of them will have fire coming out of it. Our task is just to interact with each pedestal in the area to extinguish the fire. I have marked the spot for each pedestal on the image above to help you find them quickly in the area.
Note: When you interact with a pedestal, the fire will go off. Only leave to the next one once the fire on the pedestal turns off, or it wouldn’t count.
Notably, all four pedestals are located in higher places, so you will have to jump on different rocks to get to those spots. You will always find rocks leading up to the pedestals at the top. Observe the surroundings and make progress towards each pedestal in the area. The traversal will be difficult; I will highly recommend using Magic Carpet to bypass most of the travel difficulty in this area.
Once all four pedestals have been interacted with, head over to Zi to get the next objective.
Third Objective: Enter the Cave of Screams using the password

The Cave of Screams is located in the northwest section of the Burning Spire area. Here, you will find an NPC named Kothaar Bouncer near the entrance to the cave. Talk to him and he will refuse all of your attempts to get inside and will hand over Kothaar Numbering For Dummies. It is a quest item that you can find in your inventory.

You can read to understand the number conversation to help you get inside. After you have understood the new numbers, talk to the Kothaar Bouncer to take the test. Here are all the questions that you must answer:
- Question: Halt! Speak the password to me, stranger, or you shall not pass.
- Answers:
- 1. Twelve
- 2. Two Crosses?
- 3. Two triangles separated by a line? (Answer)
The question (Halt! Speak the password to me, stranger, or you shall not pass) has 12 words, but instead of plainly saying twelve in English, we are going to use the Kothaar Numbering for the answer.
That’s it, after answering it with the third option, you will gain an entrance to the Cave of Screams. The bouncer will talk about Zi being inside the cave and accepted by Kothaar, but only on the condition that his core must be forged into a new body. Head inside the cave, defeat the enemies, and you will get Zi’s Core.
Once you grab Zi’s core, bring it back to the Kothaar Bouncer to complete the Brink of Extinction quest, and you will unlock the Plate of Pure Obsidian cape (+4 to Melee/ Ranged/ Magic Defence with no set bonus) Vestige in RuneScape Dragon Wilds.




