Defeat the Duergar Intruders is a side quest in Baldur's Gate 3 (BG3). Read on for a detailed walkthrough of Defeat the Duergar Intruders, the location of the Guardian Gate, and if you should side with Spaw or Glut!

Side Quest Details

Journal Entry
Defeat the Duergar Intruders
Recommended Lvl.	5
Rewards	Access to the Guardian Gate (Contains Valuable Loot)
Related Quest	Defeat the Duergar Intruders
Location
Underdark - Myconid Colony

Defeat the Duergar Intruders Walkthrough

	Defeat the Duergar Intruders Walkthrough
1	Travel to the Myconid Colony
2	Talk to Spaw
3	Go to the Underdark Beach
4	Defeat the Duergars
5	Side With Spaw or Glut

Travel to the Myconid Colony

You can start the Defeat the Duergar Intruders by talking to Spaw at the Myconid Colony which is located north of the Underdark.

Enter the Underdark through the Selunite Outpost and keep going northwest until you reach the colony.

Talk to Spaw

Spaw can be found on a giant mushroom (X: 80, Y: -110) next to a bunch of climbable red mushrooms stacked on top of each other.

Talk to him and he'll mention that some of the myconids were slaughtered by duergars and that he wants you to head down to the beach to get rid of them.

Go to the Underdark Beach

Make your way to the Underdark Beach (X: 20, Y: -208) which is directly south of the Myconid Colony.

As you leave the settlement, Sovereign Glut will intervene and ask if he can join you in eliminating the duergars.

If you let him tag along, the duergars will immediately become hostile upon your arrival. Leaving him behind would be a wise choice if you prefer to ambush them.

Defeat the Duergars

Kill all the duergars by the Underdark Beach, they're a bit tough to deal with as some of them have high defense and can summon the undead to join in the fight.

Side With Spaw or Glut

A	Siding with Spaw
B	Siding with Glut

After eliminating the duergars, return to the Myconid Colony and here you'll be presented with two choices that will decide the outcome of the quest:

Either kill Spaw and let Glut become the one and only sovereign, or foil Glut's plans of overthrowing the colony in which the latter will force you to fight him.

Of course you can avoid all this entirely and simply just report back directly to Spaw about killing all the duergars and receive your rewards at the Guardian Gate.

Siding with Spaw

Talk to Glut once you've made your way back to the colony and he'll ask you to get rid of Spaw. Tell him that you won't agree to his request and you'll be forced to fight Glut.

After killing him, report back to Spaw and he'll be glad to hear this. After which he will grant you access to the Guardian Gate to claim your rewards.

Siding with Glut

If you choose to abide to Glut's plans, he will join your party and fight alongside you.

During the battle, be sure to focus only on Spaw and not the other myconids as you'll only need to kill Spaw for the others to stand down.

Take note that you will no longer be able to access the Guardian Gate if you decide to kill Spaw.

Guardian Gate Location

West of Spaw

The Guardian Gate is located west of where Spaw is standing at (X: 53, Y: 72). You can easily find the entrance by looking for a Deep Rothe animal standing beside it.

Rewards

Inside the Guardian Gate, there will be a Pale Corpse and a Backpack containing valuable loot inside.

There will also be a bunch of scrolls such as the Scroll of Ray Sickness, Scroll of Blindness, as well as a Shadow of Menzoberranzan light armor lying on the ground.

Pale Corpse

The Pale Corpse contains the following notable loot:

• Flump Mating Rituals: The book transforms into one that contains information about the Adamantine Forge Side Quest if you pass one of its DCs.
• Hill Giant Finger
• Sylvan Stone
• Icy Metal
• Viridian Crystal

Backpack

The Backpack contains the following notable loot:

• Scroll of False Life
• Scroll of Hold Person

Baldur's Gate 3 Related Guides

List of All Side Quests

Prologue Side Quests

All Prologue Side Quests
How to Free the Intellect Devourer	How to Free Shadowheart

Act 1 Side Quests

Druid's Grove Quests

Druid Grove Quests
How to Steal the Sacred Idol	Should You Save The Goblin Sazza?	How to Avoid Tiefling Pickpockets
Save the Refugees	How to Save Nadira	How to Save Mirkon
How to Save the First Druid Halsin	How to Open the Stone Slab	Request Help from Nettie
How to Investigate and Expose Kagha	Save Arabella	-

The Risen Road Quests

The Risen Road Quests
Find the Missing Shipment	How to Rescue the Grand Duke
Rescue the Trapped Man	How to Free Oskar Fevras

Blighted Village Quests

Blighted Village Quests
How to Beat the Goblins: Blighted Village	How to Open the Necromancy of Thay	How to Recruit the Ogres
How to Finish the Masterwork Weapon	That Barn: Avoid Killing Buthir	Rescue the Gnome and Stop the Windmill

Goblin Camp Quests

Goblin Camp Quests
How to Get Volo's Ersatz Eye	Defiled Temple Puzzle
Find the Nightsong	Ask the Goblin Priestess for Help

Nautiloid Crash Region Quests

Nautiloid Crash Region Quests
Dank Crypt Guide	The Dying Mind Flayer	Auntie Ethel Quest Guide
How to Get Owlbear Cub	Spiderling Nest Guide-	How to Open the Selunite Chest
How to Get Scratch	Should You Heal Pandirna	Underground Passage Guide

Underdark Quests

Underdark Quests
Arcane Tower Guide	Defeat the Duergar Intruders	Save the Grymforge Gnomes
Find the Adamantine Forge	Deliver Nere's Head	How to Find the Mushroom Picker
How to Cure the Poisoned Gnome	Help the Cursed Monk	Omeluum Location

Mountain Pass Quests

Mountain Pass Quests
Steal a Githyanki Egg	How to Beat Gremishkas	How to Access Guardian of Faith Room
Dawnmaster Puzzle Guide	Where to Find the Githyanki Creche	-

This section is currently under construction. Check back later for updates!

Act 2 Side Quests

Last Light Inn Quests

Last Light Inn Quests
Seek Protection from the Shadow Curse	Rescue the Tieflings	Rescue Wulbren
How to Lift the Shadow Curse: Where to Find Thaniel	Find Zevlor	Help He Who Was
Investigate the Selûnite Resistance	-	-

Gauntlet of Shar Quests

Gauntlet of Shar Quests
Gauntlet of Shar: All Trials and Umbral Gems	Kill Raphael's Old Enemy

Mind Flayer Colony Quests

Mind Flayer Colony Quests
How to Solve the Necrotic Laboratory

Act 3 Side Quests

Rivington Quests

Rivington Quests
Investigate the Suspicious Toys	Solve the Open Hand Temple Murders	Find the Missing Letters
How to Get to Wyrm's Rock Fortress	How to Find Dribbles the Clown	-

Lower City Quests

Lower City Quests
How to Get to the House of Hope	How to Get to Cazador's Palace	Rescue Orin's Victim
Aid the Underduke	How to Get to the House of Grief	Investigate the Murders