Search in the Algae Sea is the first quest under the In the Wake of Narcissus quest chain in the Morte Region for Genshin Impact 4.2. See how to unlock the World Quest, its walkthrough, and the complete rewards here in this guide!

In the Wake of Narcissus Quest Guides
Search in the Algae Sea	Savior's Wake
Waking from the Great Dream	Rowboat's Wake

How to Unlock Search in the Algae Sea

Complete the Prerequisite Quest

Quest Unlock Requirements
	Ancient Colors
	Ann of the Narzissenkreuz
	Unfinished Comedy

Unlock Search in the Algae Sea by completing the Narzissenkreuz Quest Chains, starting from Ancient Colors where we meet Seymour, Ann of the Narzissenkreuz where we found Ann, and Unfinished Comedy where we finally meet Cater!

Fontaine World Quest List 4.2

Go to Narzissenkreuz Ordo

You can start Search in the Algae Sea by heading to the Narzissenkreuz Ordo, inside the Institute of Natural Philosophy! Simply read the book to teleport directly inside the Ordo once inside the Insitute!

How to Get to Narzissenkreuz Ordo

Search in the Algae Sea Walkthrough

Return to the Narzissenkreuz Ordo

Return to the Narzisseknreuz Ordo to check back with the gang. Once you've teleported inside, you'll see Seymour, Ann, and Caterpillar in his human-form.

Talk to Caterpillar when you're ready

Brainstorm a bit, and find a breakthrough on Mary-Ann's real identity. In this brainstorming, you'll have to select a statement, interpret it, and once it turns gold, you can use it to trigger an association with any interpretable statement!

How to Brainstorm with Caterpillar

How to Brainstorm and Find a Breakthrough

	Deduce Who Mary-Ann Is (Part 1)
1	Interpret The name Mary-Ann.
2	Interpret The Oceanid Creatures in Annapausis.
3	Interpret The Mary-Ann in Annapausis, then trigger association with There are Oceanids in Annapausis.
4	Interpret The Enigmatic Mary-Ann then submit it as your conclusion.

Talk to Caterpillar

After you've collected more leads from everyone, and have gathered your thoughts, talk to Caterpillar about what you've learned, so far. After reaching a bit of an impasse, head to the designated location in Annapausis, to know more about Mary-Ann.

Stop Al and Jak, who have lost control

Once you've arrived by the gates of the Annapausis, you'll be greeted by your previous companions, Al and Jak. After a few while, stop Al and Jak, who have lost control!

Talk to everyone

Afterwards, talk to everyone about what happened. At Caterpillar's behest, close your eyes, and open them to a bubble that magically appeared in front of everbody. Enter the Bubble, after.

Talk to Caterpillar when you're ready

Because Ann was unable to conjure the second bubble back in Annapausis, head back to Narzissenkreuz Ordo to further discuss Mary-Ann's real identity. After awhile, talk to Caterpillar when you're ready to deduce who is Mary-Ann.

Who is Mary-Ann? All Deduction Answers

How to Deduce Who is Mary-Ann

	Who is Mary-Ann?
1	Interpret The Talkative Mary-Ann.
2	Interpret The Memories of the Narzissenkreuz Institute.
3	Interpret Mary-Ann Guillotin's memories, then associate it with Mary-Ann Guillotin.
4	Interpret Mary-Ann is that younger sister.
5	Interpret The Memories of waiting in the ruins.
6	Interpret Director Lyris's Memories, then associate it with The Red Empress Lyris.
7	Interpret Mary-Ann is Lyris, then associate it with Mary-Ann is that younger sister.
8	Interpret The Identities are Contradictory then.
9	Interpret Lyris's Abilities.
10	Associate Lyris's Abilities with The Red Empress Lyris.
11	Interpret Lyris and Ann, then submit it for conclusion.

Follow Caterpillar's directions to the specified location

After hearing the analysis, Caterpillar proposes going to the Morte Region, just outside the perimeter of the Tower of Gestalt, in Morte Region. Caterpillar then tells you he managed to find a map, that holds the location of four seals you need to break to enter the tower!

Find and break the four Seals

Next is to find and break the four seals! The seals you need to find are the Orthant of Memory, Wish, Soul, and Persona! The seals are hidden behind four different locations, all of which are locked behind puzzles!

How to Find the Memory Piece

	Objectives
1	To solve the Orthant of Memory Puzzle, you must release the Energy from the devices located to the right, and far-end of the room.
2	To do this, head towards the machine across the chamber. The entrance to this machine is guarded by two Gardemeks, so prepare for a fight!
3	Next, go beside the machine and release the energy. You can watch it flow towards the machine in the middle of the room, to get a good grasp of how the whole mechanism works!
4	Then, head to the right side of the room, towards the closed door with a Feather Valve, and an Eliphas Beam puzzle. To solve this puzzle, hit the blue lantern once, to unlock the clip of the Eliphas Beam puzzle. Doing so, also turns the lantern to orange.
5	Once done, use the power of the Ball Octopus and fire at the Feather Valve until the Eliphas Beam is floating all the way up. Quickly hit the lantern once more to lock the beam in place. This also reverts its color back to blue.
6	After the door has opened, use the machine to go down. You'll see a small hallway with another Feather Valve puzzle, and a closed door. Walk towards the door, but not too far from the Valve. Fire at the Valve continuously, then bolt towards the door.
7	Then, go to the machine, and release the energy from it. Wait until the energy reaches the lift you used to go down, then go up the original using the same lift.
8	Lastly, hit release, and wait for the energy flow to reach the machine at the middle of the room to solve the Orthant of Memory's puzzle!

Muse's Mother Quest Guide

How to Find the Wish Piece

	Objectives
1	To solve the Orthant of Wish Puzzle, from the ledge, glide down to your right until you see the Eliphas Beam puzzle.
2	Use the Ball Octopus' ability and fire at the left column first, as this one reverts back to its original position slower than the one in the right. Once the left column is pushed all the way down, immediately fire at the right column.
3	Once the door opens, defeat the Mek enemy in front, and ride down using the lift.
4	Press forward, while you defeat the enemy Hydro Slimes along the way. As you reach halfway the end of the cavern, you'll see a Regulating Valve puzzle. Don't forget to borrow the Ball Octopus' ability from the nearby orb.
5	Fire at the Receiving Node of the Feather Valve, and continuously do so until the gears of the Regulative Valve clicks on the angle of its tracks. This will be marked a blue light, indicating the valves are in the right position.
6	Once all the valves lit up, release the Energy from the machine. It will flow towards the other machine from across the cavern. Use this machine as you lift to reach the floor above. Make sure stand by right beside it as there are times that the Go Up option doesn't appear!
7	After reaching the floor above, release the energy from the machine, and watch it go straight to the machine at the middle of the room.
8	Then, lead the Seelie you just saw towards its court below the machine. Doing so removes the barrier on the surface of the water, which means you can now dive freely!
9	After diving, you'll see another Regulating Valve Puzzle underwater. You must first defeat the Mek Fish enemies to free the Ball Octopus Aberrant so you can borrow its abilities.
10	Once done, fire at the Feather Valve nearest to the machine first. Make sure to hit the Receiving Node that will rotate the three valves clockwise. Immediately stop once they've rotated clockwise, two times.
11	Then, go to the other Valve and do the same thing. Hit the Node that will make the two valves rotate clockwise, two times, as well. Once all valves have lit up, release energy from the machine.
12	Afterwards, borrow the ability of the Sting Ray, to be able cut the seagrass that blocks the exit. Make sure to hit their weakpoints at once, to be able to cut them cleanly!
13	Once you've exited the puzzle, use the lift to go the upper floor. You'll have to press go up two times to reach the uppermost floor! Lastly, release the energy from the machine, and defeat the enemy Meks along the way!

Meteoric Lance Quest Guide

How to Find the Soul Piece

	Objectives
1	Once you're inside, immediately release the energy from the Energy Flow device. You'll see that the door across needs a Special Key to be opened, which you can get later!
2	From the locked door, glide down to your left, until you see the huge door with enemy Meks guarding outside. Defeat them and press forward.
3	From the main machine mechanism, make a sharp turn to your left, until you see a lift, and a Looking Glass hanging by the wall. Enter the glass.
4	Then, exit using the portrait hanging beside two fire torches. You will then get teleported out into a hallway with an Energy Flow device at the end. Alternatively, you can simply use the nearby lift to get to the upper floor.
5	Either way, you should see an Energy Flow device at the end. Head towards the device, and pick up the Special Key behind it, as well as the Hydroculus. Then go across the hallway, and use the switch to call the Lift, if you used the Looking Glass.
6	Once the lift, and the Energy Device are on the same floor, release the Energy from the device. This will summon enemy Meks, so defeat them, and press on.
7	After defeating the enemies, go down the floor below, and hit release once the lift stops.
8	Walk towards the machine at the middle, then make a sharp turn to your left. You should see an Energy Flow device. Use it to go to the floor below.
9	As soon as you step out of the lift, swim towards the submerged room. Hit the Blue Lantern once, to unlock the door, and summon a Fontaine Current. Enter the room.
10	Once inside, hit the Orange Lantern slightly hidden to your left. This will open the door, revealing a Fontemer Aberrant Ball Octopus inside.
11	Swim slightly closer to the door, without actually going in, then hit the Orange Lantern once. This will close the outer door, so make sure to quickly swim, so you won't get locked out.
12	The Energy Flow device should now be unlocked. Release the energy from it once to drain the water from the room. This also unlocks all doors behind you, which leads to a room filled with enemy meks.
13	Use the Hydro Bubble to quickly access the Energy Flow device. Use it to go up the floor above, then hit release, as soon as it stops.
14	Then, walk towards the main Energy Flow device, then turn to your left. You will see another Hydro Bubble, which you should use to access the locked door that needs a Special Key.
15	Lastly, go to the floor below using the lift, then hit release once it stops. The energy should reach the main mechanism, solving the Orthant of Soul puzzle!

Cupid's Lover Quest Guide

How to Find the Persona Piece

	Objectives
1	To solve the Orthant of Persona Puzzle, release the Energy from the very first machine storage you see.
2	Then, press forward until you see a small bridge, and two Clockwork Mek enemies below. Jump down, and defeat the enemies, then release the Energy from the nearby machine.
3	Next, is to ride the lift once the machine has activated. Once it's reached the upper floor, release the Energy from it, and let it flow along the bridge, all the way to the across the other side of the chamber.
4	Once you've reached the submerged area of the chamber, you'll realize that the room at far-end needs a Special Key to be opened, while the one to your right has a red barrier. Swim underneath, until you see the room full of deactivated Meks.
5	From the room, make a sharp turn to your right, until you see a Regulative Valve puzzle, and a Feather Valve puzzle with missing Receiving Nodes.
6	The Receiving Nodes are hidden within the nearby boulder, which you can destroy using the ability of an Armored Crab Aberrant. Another nearby boulder by the wall hides an Aberrant Ball Octopus, while another one at your back, hides the machine storage!
7	After destroying the three boulders, and placing the Receiving Nodes to their corresponding Feather Valve, use the Ball Octopus ability and fire at the leftmost node, and wait for the Valves to rotate twice.
8	Once they light up, head to the machine storage, and release the Energy. Then, swim upward, until you see another machine storage, and wait for the energy to reach it. Once it has, release again.
9	As you continue, you will be taken back the previously-submerged awhile back. Defeat the enemy Meks, and exit using the lift behind the door.
10	Once you've reached the upper floor, release once, until it reaches the machine at the middle of the room!

Thalia and Melpomene Quest Guide

Keep moving ahead

After obtaining the Orthant of Persona, the last seal, you'll be teleported on top of the tower. Enter the Tower of Gestalt through the opening nearest to you. Once inside, you find yourself inside the Narzissenkreuz Ordo, where Jakob awaits you.

Go to the lower level

Talk to Jakob for awhile, and defeat him once the battle has commenced. Seymour, Ann, and Caterpillar then joins the fray, leaving Jakob outnumbered, and defeated. Afterwards, go to the lower level of the Ordo through the gap where the clock's hand fell.

Search in the Algae Sea Information

Sub-Quest of In the Wake of Narcissus

Search in the Algae Sea is a subquest of the quest, In the Wake of Narcissus, the quest chain that serves as the conclusion and end to the Narzissenkreuz Adventure!

Search in the Algae Sea is the first part of the In the Wake of Narcissus world quest chain.

In the Wake of Narcissus World Quest Guide

Search in the Algae Sea Rewards

Total Quest Rewards

Total Quest Rewards
Primogem x60	Mystic Enhancement Ore x6	Mora x50000
Hero's Wit x5	Adventure EXP x500

Genshin Impact Related Guides

All Quests and Quest Types

Other In the Wake of Narcissus Quest Guides

In the Wake of Narcissus Quest Guides
Muse's Mother	Search in the Algae Sea	Meteoric Lance
Savior's Wake	Cupid's Lover	Waking from the Great Dream
Thalia and Melpomene	Rowboat's Wake

In the Wake of Narcissus Quest Line Guide

All Fontaine World Quests Guide

Fontaine World Quest Guides
A Certain Notice	“Hey, This Isn’t Pumpkin Soup…”	“If She No Longer Dreams of You...”
A Brush of Seafoam and Crimson	A Certain Stamp	A Certain Trifle
A Fontanian Message	A Gradient of Dreams and Ochre	A Letter
An Expected Lie	An Expected Plan	An Eye for An Eye
Ancient Colors	Ann of the Narzissenkreuz	Ann's Story: Prologue
Another Horizon of Adventure	Aqueous Tidemarks	Blue Longing of Heart and Moon
Book of Esoteric Revelations	Both Brains and Brawn	Canticles of Harmony
Cupid's Lover	Danger Lurks Everywhere in Fontaine	Daydreams Beyond Space and Time
Echoes of the Ancient World	Fishing Game	Foggy Forest Path
Fontaine Research Institute Chronicles	For Yesterday and Tomorrow	Fortune Plango Vulnera
Free Verse	Furious Mouth of the Spring	Game of the Rich
Good Stuff, but Terrible Taste	Gradus ad Capitolium	Happy Birthday
Hereafter...	Impromptu Poem of the Crimson Dawn	In Expert Company Part 1
In Expert Company Part 2	In Search of Lost Time	In the Wake of Narcissus
Initial Facts	Kingdom Through the Looking-Glass	Latecoming Homecoming
Leroy	Leroy: Beautiful Friends	Leroy: Dying Flash
Leroy: Firing Squad	Leroy: Hangman's Noose	Leroy: High Noon
Leroy: Queen of the Night's Aria	Leroy: Under Guard	Meteoric Lance
Muse's Mother	Pursuit	Questioning Melusine and Answering Machine
Questions and Answers	Road to the Singularity	Rowboat's Wake
Savior's Wake	Search in the Algae Sea	Self-Automatic Foraging
Seymour's Story: Prologue	Stagnating in the Rubble	Steambird Interview
Still Mouthwatering!	Strange Stone Chronicle	Thalia and Melpomene
The Final Question	The Fountain Flows Again	The Last Day of Remuria
The Lone Phantom Sail	The Narzissenkreuz Adventure	The Red and the Black
The Shadow Over Petrichor	The Three Primary Colors of Solar Corona	The Wild Fairy of Erinnyes
Through the Looking Glass	Treacherous Light of the Depths	Truly Mouthwatering!
Underwater Nocturne	Unfinished Comedy	Unfinished Story
Upon a Flowery Field of Grass	Vagrants and Scamps	Villains
Waking from the Great Dream	Were It So Easy	Where His Life Lies
Wilting Weeping Willow	Wish-Fulfilling Treasure Hunt	Within the Depths of Erinnyes

List of World Quests