Crimson Desert: Sanctum of Benediction Puzzle Solution
TL;DR
- Unlock this Sanctum in Chapter 5 after speaking to Elowen, the Witch of Wisdom
- Defeat all Antumbra enemies to liberate the area first
- Find two Fusion Reactor Cores — one in a side room, one behind a lantern-locked door
- Insert both cores into the machine using Axiom Force and Force Palm
- Reward: Kuku Marni Laser Helm blueprint + Leather Helm of the Fallen Kingdom from the hidden chest
The Sanctum of Benediction is one of the Sanctums that Elowen, the Witch of Wisdom, sends Cliff to cleanse in Crimson Desert. It sits in a frost-covered mountain region and involves a two-part puzzle that trips up a lot of players — especially the second core hidden behind a locked door. This guide walks you through everything: enemy clearing, both core locations, the hidden chest, and how to power up the machine.
If you want to see all Sanctums in one place, check out the full Crimson Desert Sanctum locations guide.
Sanctum of Benediction Location in Crimson Desert

The Sanctum of Benediction is in the western part of the Hernand Region, high up in the snowy mountains. On the map, look right below the “E” in Hernand. The closest fast travel point is the Abyss Nexus at Starlight Storm Cave. From there, ride your horse west along the winding mountain road until you reach the ice-covered ruins.

The area has heavy frost buildup, so prepare before you go. Equip gear that boosts Ice Resistance and bring consumables that protect against cold damage. Running in without frost protection will drain your health quickly. See our full Crimson Desert ice resistance and frost protection guide for details.
How to Unlock the Sanctum of Benediction
You cannot cleanse any Sanctum until you reach Chapter 5 and speak with Elowen. She is part of the Witches faction questline, and completing her introduction is required before any Sanctum puzzle activates. If you arrive too early, you will see a message saying the Sanctum cannot be purified yet.
You also need both Axiom Force and the Kuku Pot unlocked before you can interact with the puzzle pieces. Make sure you have both ready before heading out. Check our guide on how to use Axiom Force in Crimson Desert if you need help with that.
For a look at all Witches and their locations, visit our Crimson Desert all witches locations guide.
How to Liberate the Sanctum of Benediction
When you arrive, Antumbra soldiers will be holding the area. You need to eliminate all of them and bring the liberation progress bar on the left side of the screen down to 0% before the puzzle activates.
Enemies are spread throughout the ruins, mostly on the upper levels near the central machine. Clear groups one at a time rather than pulling everyone at once.
Some enemies fly and cast shadow attacks. They are annoying while melee fighters surround you. The simple fix is to shoot them with arrows first to knock them out of the sky, then finish them off on the ground. See our full guide on how to beat flying enemies in Crimson Desert for more tips.
Sanctum of Benediction Puzzle Solution in Crimson Desert
Once the area is clear, the puzzle begins. You need to find two Fusion Reactor Cores and insert them into the central machine to cleanse the Sanctum.

First Fusion Reactor Core Location
Head toward the southwestern entrance of the Sanctum and climb the two stone staircases to reach the main courtyard. At the top, you will see two doorways framed with glowing stones.
Enter the correct doorway on the side with the opening and head into the small dark room at the bottom of the stairs. Use your Axiom Force to grab the cube-shaped Fusion Reactor Core inside. Once you have it, seal it into your Kuku Pot for transport.

Second Fusion Reactor Core Location
This is where most players get stuck. The second core is inside the large tower structure in the center of the area. The entrance looks completely sealed and blocked by bricks.
The solution is simple — look to the right of the sealed entrance. There is a stone lantern sitting beside the door. Light it, and the doorway will immediately open.
Head inside and grab the round-top Fusion Reactor Core using Axiom Force. Seal it into your Kuku Pot before moving on.
Hidden Treasure Chest
While you are inside the tower room, walk to the far end. You will find a small indent in the wall covered with vines. Inside is a hidden treasure chest containing the Leather Helm of the Fallen Kingdom — a solid helmet with Abyss Gears that boost Turning Slash damage. Do not leave without grabbing it.

How to Insert the Fusion Reactor Cores
Now head back to the central machine with both cores.
Round-top Fusion Reactor Core: Place this on the broken pillar beside the machine. Climb on top of the pillar and use an Aerial Force Palm to push the core down and lock it in place.
Cube-shaped Fusion Reactor Core: Insert this directly into the main machine itself. Use a regular Force Palm — not aerial — to push it into the empty socket and secure it.
Once both cores are inserted, the machine powers up and the Sanctum of Benediction is officially cleansed.
Sanctum of Benediction Rewards in Crimson Desert
After cleansing the Sanctum, return to Elowen to collect your rewards:
- Kuku Marni Laser Helm blueprint — the main reward for completing the puzzle, used for crafting Kuku Pot items
- Leather Helm of the Fallen Kingdom — found in the hidden chest inside the tower room, comes with Abyss Gears that boost Turning Slash damage
Both rewards make completing this Sanctum well worth the effort, especially early in the game. For more on getting the best gear early, see our Crimson Desert best items early guide.
More Crimson Desert Sanctum Guides
Working through all the Sanctums for Elowen? Here are the other walkthroughs:
- Sanctum of Absolution Puzzle Solution
- Sanctum of Veneration Walkthrough
- Sanctum of Devotion Walkthrough
- Sanctum of Faith Walkthrough
- Sanctum of Oblation Walkthrough
- Sanctum of Mortification Walkthrough
- Sanctum of Atonement Puzzle Guide
- Sanctum of Deliverance Puzzle Guide
- Sanctum of Revelation Puzzle Guide
- Sanctum of Solace Puzzle Solution
- Sanctum of Exaltation Puzzle Solution
- Sanctum of Temperance Puzzle Solution
- Full Crimson Desert Guide Hub
More Crimson Desert Guides
- How to Open the Cloister of Enlightenment
- How to Reinforce Equipment
- How to Get Max Health
- How to Get Max Stamina
- How to Fast Travel
- How to Save in Crimson Desert
- Best Early Build
- Crimson Desert Trophy List
Crimson Desert is available on PlayStation 5, Xbox, Steam, and Epic Games Store. Visit the official Crimson Desert website for more.



