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Hogwarts Legacy

Mer-Ky Depths Side Quest Walkthrough

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★ List of All Treasure Map Quests
★ Best Side Quests to Do First | Best Optional Quests
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Mer-Ky Depths Top Banner
Mer-Ky Depths is one of the side quests in Hogwarts Legacy. Read on to see a detailed walkthrough, rewards, location, and tips on how to unlock and how to complete this side quest!

List of Contents

Mer-Ky Depths Overview

General Info

Mer-Ky Depths
Quest Giver Nerida Roberts
Description Nerida Roberts is sitting on the docks by the Hogwarts boathouse. I should go speak with her.

Mer-Ky Depths Rewards

Completion Rewards
180 XP, Mermaid Liaison Uniform

How to Unlock Mer-Ky Depths and Location

Complete Percival Rackham's Trial

To unlock the Mer-Ky Depths side quest, you first need to complete the main quest Percival Rackham's Trial.

Percival Rackham's Trial Quest Walkthrough

Location

Map View World View
Mer-Ky Depths Map Location
Hogwarts Castle
Mer-Ky Depths World Location
Boathouse

Mer-Ky Depths Walkthrough

Objectives
1
Mer-Ky Depths Step 1
Talk to Nerida Roberts.
Nerida Roberts is sitting right in front of the Boathouse Floo Flame fast travel point.
2
Mer-Ky Depths Step 2
Find the Leaky Caves.
Use your broom and head west. Interact with the whirlpool marked on the water to Dive.
3
Mer-Ky Depths Step 3
Find and collect the Mermish artefact.
There are 3 moth stands in the room you emerge in (2 behind cobwebs). Burn the cobwebs away with Incendio and get the moth with Lumos. Bring all 3 moths to the moth door east. Search the chest inside the room.
4
Mer-Ky Depths Step 4
Return to Nerida.
Dive back in the water you emerged from, then fly back to Nerida. Talk to her to complete the quest.

Mer-Ky Depths Tips and Strategies

No Difference if You Give or Keep the Gift

Choice Result
Happy to have helped. Enjoy your gift. You complete the quest and receive a Mermaid Liaison Uniform.
I've decided to keep the gift. You complete the quest and receive a Mermaid Liaison Uniform.

There's no gameplay difference in the outcome if you choose to keep the gift or not. If you decide to keep it, Nerida simply gets upset with you then storms off.

Hogwarts Legacy Related Guides

Hogwarts Legacy - List of Side Quest.png
List of Side Quests

All Side Quests

Hogwarts Castle Side Quests
Like a Moth to a Frame Crossed Wands: Round 1
Flying Off The Shelves Gobs of Gobstones
Cache in the Castle The Daedalian Keys
Crossed Wands: Round 2 Spell Combination Practice 1
Venomous Valour Crossed Wands: Round 3
Spell Combination Practice 2 Dissending for Sweets
Summoner's Court: Match 1 Interior Decorating
Mer-Ky Depths The Man Behind the Moons
Summoner's Court: Match 2 The Tale of Rowland Oakes
The Hall of Herodiana The Plight of the House-Elf
Summoner's Court: Match 3 Foal of the Dead
Beeting a Curse All's Well that Ends Bell
Summoner's Court: Match 4 Phoenix Rising
History of Magic Class Summoner's Court: Match 5
South Hogwarts Side Quests
The Lost Astrolabe Carted Away
Absconder Encounter Well, Well, Well
Hogsmeade Side Quests
Follow the Butterflies Flight Test
A Demanding Delivery A Friend in Deed
Sweeping the Competition Venemous Revenge
Take the Biscuit Spot Removal
Tangled Web Minding Your Own Business
The Sky is the Limit The Unique Unicorn
Portrait in a Pickle -
Hogsmeade Valley Side Quests
Breaking Camp Brother's Keeper
Forbidden Forest Side Quests
Ghost of Our Love -
Hogwarts Valley Quests
Kidnapped Cabbage Troll Control
Feldcroft Region Quests
E-Vase-Ive Manoeuvre A Thief in the Night
Poidsear Coast Side Quests
The Hippogriff Marks the Spot -
Marunweem Lake Side Quests
Birds of a Feather -
Manor Cape Side Quests
Cursed Tomb Treasure Rescuing Rococo
Solved by the Bell -
Cragcroftshire Side Quests
Sacking Selwyn -

All Relationship Quests

Sebastian Sallow Questline
In the Shadow of the Bloodline In the Shadow of the Study
In the Shadow of Discovery In the Shadow of Time
In the Shadow of Distance In the Shadow of Hope
In the Shadow of the Relic In the Shadow of Fate
In the Shadow of Friendship
Natsai Onai Questline
The Lost Child Mum's the Word
A Basis for Blackmail Grief and Vengeance
Finding Focus Harlow's Last Stand
Acting on Instinct
Poppy Sweeting Questline
A Dragon Debrief Poached Egg
The Poacher's House Call Surprise Meeting
The Centaur and the Stone It's in the Stars
A Bird in the Hand Poppy Blooms

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