Dual Evidence is the first world quest under the Old Notes and New Friends chain in Sumeru for Genshin Impact. See how to unlock the Dual Evidence quest, and how to solve and investigate the ruins and puzzles in Hypostyle Desert ruins here!

Old Notes and New Friends Quest Guides
Dual Evidence	Soheil's Wish
Invisible Barrier	Hidden Mercenaries
Desert's Remembrance

How to Unlock Dual Evidence

Complete Golden Slumber

You can unlock Dual Evidence after completing the Golden Slumber quest chain in Khaj-Nisut. Afterwards, wait for a one server reset to access the quest!

Golden Slumber World Quest Chain Guide

Start the Quest in Aaru Village

The quest will automatically trigger once you teleport to Aaru Village's Statue of the Seven, or enter the village's vicinity after server reset.

Server Reset Times and Timezones

Dual Evidence Quest Walkthrough

Enter Aaru Village with Kalantari

Make your way to Aaru Village with Kalantari. As you walk through the streets in the objective location, you will be stopped by Soheil. Talk to Soheil afterwards.

Search for Duat Hall

Duat Hall's location, which is indicated from your stone slate, is inside the Dune of Magma pyramid southwest of Hypostyle Desert. The Guidance icon is covered by the Teleport Waypoint, so it may be hard to see at first glance!

	Duat Hall Location Walkthrough
1	Upon entering Dune of Magma, proceed to the left or right path by interacting the book device. This should open the door. You'll have to use the air current from the Giant Fan Blades if you did go the left path.
2	Carefully time the release of the Primal Ember. The Giant Fan Blades should have just stopped spinning before you release it or else the Ember will break from the wind!
3	Guide the Primal Ember until it reaches to the main room. The door opens afterwards.
4	Head inside the door and drop down the hole. You can carry the Forged Primal Lights with you to solve the Remarkable Chest puzzle below!
5	Past the Remarkable Chest puzzle, drop down to another hole which leads you to an underground cavern.
6	Proceed deep in the cavern while following the quest marker.
7	Once you've reached the big area with an inactivated teleport waypoint underneath, you'll find the entrance of Duat Hall on the upper side of slope.
8	Enter Duat Hall. There should be a seelie on the other side of the room.
9	Follow the seelie until it guides you upstairs. There should also be another Teleport Waypoint there. Open the door with the book to complete this objective.

Obtain full clearance from Aaru Ruins

Complete the following ruins by activating the monolith with all Primal Embers in the following locations:

1. Place of Rebirth ruins north of Dune of Magma.
2. Place of Breath ruins in Khemenu Temple.
3. Place of Swallowing ruins in Duat Hall.

Explore the Place of Rebirth

You can find the Place of Rebirth underneath Duat Hall. Start by going to the Teleport Waypoint north of Dune of Magma.

	Place of Rebirth Walkthrough
1	Teleport north of Dune of Magma, or the entrance to Duat Hall.
2	Go down the hole in front of the entrance of Duat Hall. There should be a Dendroculus here and a Four-Leaf Sigil!
3	Proceed down the hole and release the first Primal Ember to the flooded room.
4	Head inside the corridor on the opposite side of the entrance.
5	When you get to the room with multiple lit and fragmented Pyro Torches, look for the Forged Primal Lights outside the ledge on the opposite side of the room and create a Verity Cell on the blue platform.
6	Use the newly constructed Verity Cell to reveal the Pyro Torches. Light all of them afterwards.
7	Defeat the enemies, then release the second Primal Ember back to the main room.
8	Return to the main room then go to the right path from the entrance.
9	Go down the right staircase.
10	In this room, you'll have to move the two cells at the same time. It has a hidden time limit. If you're too slow, the cell will return to the its original position. So alternate between two cells to ensure that both of them will link up to the their own respective cells.
11	Release the third and final Primal Ember to the main room. This will up your slate with one clearance!

Explore the Place of Breath

You can find the Place of Breath underneath Khemenu Temple. Start by going to the Teleport Waypoint you first unlocked during the An Introduction to Indoor Archaeology. You'll need Clearance Level 2 for this, so it's recommended to do the other Places ruins first!

	Place of Rebirth Walkthrough
1	Teleport to Khemenu Temple then head forward to the main room.
2	Head forward, then take the left corridor.
3	Open the first door you see with the blue book device, then drop down the hole.
4	Once you see the beam puzzle, break the rock on the left.
5	Rotate the cell so that the door opens. The Primal Flame beside you isn't required for this quest (as it's for a different puzzle). For the sake of completing the quest, enter the door to go outside.
6	Drop down to the ground and follow the stone slate guidance marker (it will appear when you press "Go" for Place of Rebirth on the third tab in your Scarlet Sand Slate gadget).
7	Continue ahead and go up the ramp.
8	Follow the slate marker to the triangular entrance of the ruin.
9	Go inside the Place of Rebirth.
10	Glide down to the right door from the entrance.
11	Continue forward until you see the first Primal Ember.
12	Follow the path of the Primal Ember until you get to the big fan blowing by the corridor. You'll have to disable the fan first by interacting the book (Clearance Level 2).
13	Head inside and defeat the Primal Constructs to get the second Primal Ember.
14	Before proceeding, collect the third one first inside the locked room with the book device. Get inside the door, then activate the elevator to go up to the last Ember.
15	Return with all Primal Embers and offer it to get another clearance level!

Explore the Place of Swallowing

You can find the Place of Swallowing in Duat Hall, or the bluish room where you first see the big room before. It's recommended to leave this last as the next quest objective is in the same location. You can get here by teleporting to the waypoint south of Mausoleum of King Deshret.

	Place of Swallowing Walkthrough
1	Teleport to Duat Hall and head for the bluish area with broken platforms you were in earlier. Then go forth the big room.
2	Guide the three Primal Embers on the floating platforms to the room on your right.
3	You'll need to time your releases perfectly as the big rotating fans will break them if they're blowing air. The left and center embers will be blown away by horizontal fans, while the fan for the right ember is vertical.
4	Gather all Primal Embers to the entrance of the right room.
5	Offer all of it to the monument to get another clearance.

Head to the Great Hall of Truths

From Place of Swallowing, return to the main room and head to the opposite side of the entrance. Enter the Great Hall of Truths by the two big statues. Once there, go near the big device to examine it.

Activate the giant device

Go to all four monuments on the northwest, northeast, southwest, and southeast corners of the device, then press the operate button on all four books to activate the giant device.

Continue forward the ruins

Return to the giant device and phase through the barrier in the middle. You will then be transported to a giant room.

Light the three Primal Torches

All Primal Ember locations

Primal Ember by a mural

In this area, you will have to release all three Primal Embers to their Primal Torches. All Primal Embers are located by the murals on the wall. This one is fairly simple as all locations are marked in your map, and you just need to guide them to the torches while fighting enemies.

Afterwards, return to the middle and activate the device.

Defeat the Field Annihilation Array

The "big guy with evil intentions" is the Field Annihilation Array, an Algorithm of Semi-Intransient Matrix variant. You can check how to defeat this boss on the guide below!

Algorithm of Semi-Intransient Matrix Guide

Look for valuable items

Open the Precious Chest and get the Record of Aaru's Shut inside.

Talk to Soheil in Aaru Village

After your arduous journey, return to Aaru Village and report your findings to Soheil. This will complete the quest!

Dual Evidence Information

Sub-Quest of Old Notes and New Friends

This quest is a sub-quest to complete the Desert quest chain under Old Notes and New Friends You'll need to clear all quests to unlock all ruins and exploration abilities in the Desert area of Sumeru!

Old Notes and New Friends Guide

Quest Release Date

Genshin Impact Version 3.1
Release Date	September 28, 2022

Dual Evidence was released in Version 3.1, which went live on September 28, 2022! Check out all new content in the newest update here:

Version 3.1 Release Date & Banners

Dual Evidence Rewards

Total Quest Rewards

Quest Rewards
Primogem x60	Mora x45000	Hero's Wit x4
Mystic Enhancement Ore x4

Genshin Impact Related Guides

All Quests and Quest Types

Other Old Notes and New Friends Quest Guides

Old Notes and New Friends Quest Guides
Dual Evidence	Soheil's Wish	Invisible Barrier
Hidden Mercenaries	Desert's Remembrance

Old Notes and New Friends Quest Line Guide

All Sumeru World Quests Guide

Sumeru World Quest Guides
"Hello," "Thank You," and the Final "Goodbye"	“The Falcon’s Hunt”	A Delicacy for Nara
A Gifted Rose	A Gifted Rose: Ballad of Days Gone By	A Gifted Rose: Can Stones Bloom
A Gifted Rose: Long Day Ahead	A Gifted Rose: Prickly as Thorns	A Gifted Rose: Some People Never Fade Away
A Prayer for Rain on the Fecund Land	A Short Encounter with a Rare Bird	Adventure Takes Courage!
Afratu's Dilemma	Agnihotra Sutra	An Artist Adrift
An Introduction to Indoor Archaeology	An Unwavering Culinary Dream	Another Home There May Yet Be
Apocalypse Lost	Aragaru's Drawing	Aranaga's Memory
Aranakin's Old Friend	Aranyaka	As the Khvarena's Light Shows
As the Khvarena's Light Shows: Dukkha	As the Khvarena's Light Shows: Nirodha	As the Khvarena's Light Shows: Samudaya
Asipattravana Itihasa	Awakening's Real Sound	Behold, the Sign Comes Like A Thief...
Blooming Sands	Children of the Forest	Cooking, a Pleasant Memory
Cooking, the Aroma of Homecoming	Cooking, the Beauty of Sharing	Cooking, the Flavor of Nature
Corps of Thirty Recruitment	Cost-Effective Hook	Courage is in the Heart
Delicious Riddle	Desert's Remembrance	Dream Nursery
Dreams Beneath the Searing Sand	Dual Evidence	Dune-Entombed Fecundity: Part I
Dune-Entombed Fecundity: Part II	Dune-Entombed Fecundity: Part III	Even Beasts Stumble
Festival Utsava	For A Better Reunion	For All Children Who Long For Life
For Fruits, Seeds, and Trees	For Her Judgement Reaches to the Skies	For the Children of the Past
Garcia's Paean: A Gift of Compatibility	Garden Fairies	Giving Flowers
Golden Slumber	Gourmet Supremos: Within Our Duties	Heart of Amrita
Her Foes Rage Like Great Waters...	Hidden Mercenaries	In the End, the Forest Will Remember
Into the Woods	Investigate the Fatui Camps Marked by Sosi	Invisible Barrier
Irate Iron Chunk	Join the Eremites and Embrace a Wonderful New Life!	Khvarena of Good and Evil
Legends of the Stone Lock	Lightcall Resonance	Lost in the Sands
Make Bright the Arrows, Gather the Shields...	Memory of Stone	Memory's Final Chapter
Monumental Study	Next Time, On King of Invokations	Nursery of Lost Dreams
Old Notes and New Friends	Pale Fire	Purbiruni's Commandment
Recollections of a Fontainian	Rejoice With Me, for What Was Lost Is Now Found	Risen Moon Chapter
Rishboland Tiger, roaaar	Royinjan's Chapter: Linga	Royinjan's Chapter: Yoni
Search for the Lost Monument Fragments	Slumbering Roots	Soheil's Wish
Sprouting Seedlings	Starry Night Chapter	Static Views
Static Views, Part 2	Tadhla the Falcon	Taste of Happiness
The Children of Vimara Village	The Dirge of Bilqis	The Eternal Dream, Ever Lush
The Exile	The Exile: Blooming	The Exile: Sprouting
The Fallen Falcon	The Final Chapter	The Foolish Fatuus
The Gourmet Supremos: Cleanup	The Hymn of Tir Yazad	The Lost Child
The Path of Papers	The Price	The Rhythm that Leads to the Gloomy Path
The Rhythm that Nurtures the Sprout	The Rhythm that Reveals the Beastly Trail	The Secret of Al-Ahmar
The Splendorous Sky That Day	The Temple Where Sand Flows Like Tears	The World Of Aranara
Treasure of Wisdom: A New Plan	Trees and Dreams	Until Vana is Healed
Varuna Gatha	Varuna Gatha (Quest)	Vimana Agama
Vimana Agama: Dev Delver	Vimana Agama: First Chapter	Vimana Agama: Jazari's Chapter
Vimana Agama: Royinjan's Chapter	Where Are the Fierce Creatures	While the Dream Lingers
Wisdom Has Built Her House, She Has Hewn Out Her Seven Pillars	Woodland Encounter

List of World Quests