Help Omeluum with the Parasite

Key takeaways

The quest is a short research errand with a significant warning: Omeluum's procedure does not remove the parasite.

Start in the Myconid Colony Speak with Blurg and Omeluum in the Myconid Colony to initiate the investigation.
Search the Arcane Tower Omeluum's research requires Tongue of Madness and Timmask Spores, both associated with the Arcane Tower.
Choose the drinker carefully The character who drinks Omeluum's potion receives Survival Instinct, so the identity of that character affects who gains the ability.
Expect research, not a cure The experiment fails to remove the parasite, although it gives the party temporary insight into its nature.
Return for further commerce After the quest, Omeluum becomes a trader and offers additional useful equipment, including the Pearl of Power Amulet and Creation's Echo.

Help Omeluum with the Parasite: overview

Help Omeluum investigate the parasite in Baldur's Gate 3 by collecting rare ingredients from the Arcane Tower and assisting with an experimental potion.

Help Omeluum with the Parasite is an Act One side quest that begins in the Myconid Colony within the Underdark. The conversation is introduced through the hobgoblin Blurg, who is accompanied by Omeluum, a mind flayer who has escaped the control of the Elder Brain. Omeluum is interested in studying the parasite affecting the party rather than simply treating it as an ordinary infection.

The investigation sends the party to the Arcane Tower to obtain two named ingredients: Tongue of Madness and Timmask Spores. These ingredients are central to Omeluum's research, so the quest is structured around travelling away from the Myconid Colony, searching the tower, and returning with the requested materials. The source material does not establish a required combat route or a fixed order for gathering them.

After the ingredients are delivered, Omeluum prepares a potion and asks the character undergoing the experiment to drink it. The attempt does not remove the parasite. Instead, the experiment fails to cure the infection while granting a temporary understanding of its nature, and the character who drinks the potion receives the Survival Instinct tadpole ability. Omeluum can also provide or sell the Ring of Mind-Shielding, and later becomes a trader offering items including the Pearl of Power Amulet and Creation's Echo.

Where this sits

Find the Myconid ColonyReach the quest's starting area

Meet Blurg and OmeluumBegin the parasite investigation

Visit the Arcane TowerCollect the requested ingredients

Return to OmeluumDeliver the ingredients and continue the research

Resolve the experimentDrink the potion and receive the quest outcome

1Myconid ColonyStarting point for the conversation that introduces the quest.
●Arcane TowerResearch destination for Tongue of Madness and Timmask Spores.
3Omeluum's experimentFinal stage of the investigation after the ingredients are returned.

The quest moves from the Myconid Colony to the Arcane Tower and back to Omeluum's research.

Requirements

Reach the Myconid Colony in the Underdark and make contact with the two characters involved in the investigation.

RequiredAccess to the UnderdarkThe quest takes place in Act One's Underdark, so the party must be able to reach that region.
RequiredReach the Myconid ColonyBlurg and Omeluum can be found in the Myconid Colony, where the quest can be initiated.
RequiredTravel to the Arcane TowerThe party must reach the Arcane Tower to collect Tongue of Madness and Timmask Spores.
RequiredA character willing to drink the potionThe experiment requires a character to drink the potion Omeluum brews after receiving the ingredients.

Objectives

Speak with Blurg and Omeluum in the Myconid Colony.This conversation establishes Omeluum's interest in examining the party's parasite.
Collect Tongue of Madness.Find the first ingredient requested for Omeluum's research in the Arcane Tower.
Collect Timmask Spores.Find the second ingredient requested for the experiment in the Arcane Tower.
Return the ingredients to Omeluum.Bring both research materials back so Omeluum can brew the potion.
Drink Omeluum's potion.The character who drinks it undergoes the attempted transformation and receives the associated ability reward.

Walkthrough

01
Reach the quest's starting location
Reach the Myconid Colony in the Underdark
Travel to the Myconid Colony, the location where Blurg and Omeluum can be found together. The supplied sources do not establish one mandatory entrance or route through the Underdark, so use the path available to your party.
Location: Myconid Colony, Underdark
TipTreat the Myconid Colony as the point of reference for the entire investigation; Omeluum is not introduced at the Arcane Tower.
02
Initiate contact with the researchers
Speak with Blurg
Talk to the hobgoblin Blurg in the Myconid Colony. This interaction can lead the party to Omeluum and establishes the context for the mind flayer's interest in the parasite.
Location: Myconid Colony
03
Accept Omeluum's investigation
Speak with Omeluum
Continue the conversation with Omeluum, the mind flayer who has broken free from the Elder Brain's control. Omeluum offers to study the parasite affecting the party, beginning the side quest's research objective.
Location: Myconid Colony
Watch outThe experiment is an investigation rather than a guaranteed cure; the supplied source explicitly states that it does not remove the parasite.
04
Reach the research site
Travel to the Arcane Tower
Leave the Myconid Colony and make your way to the Arcane Tower in the Underdark. The source pack confirms the destination but does not provide a single required route, entrance, ladder, or encounter order.
Location: Arcane Tower, Underdark
TipKeep the two ingredient names visible while searching so that Tongue of Madness and Timmask Spores are not confused with unrelated alchemical materials.
05
Obtain Tongue of Madness
Collect Tongue of Madness
Search the Arcane Tower for Tongue of Madness, one of the two specific ingredients Omeluum requests. The supplied material does not verify an exact floor, container, quantity, or pickup location, so those details should not be treated as fixed here.
Location: Arcane Tower
Missable
06
Obtain Timmask Spores
Collect Timmask Spores
Search the Arcane Tower for Timmask Spores, the second named research ingredient. As with Tongue of Madness, the source pack confirms the ingredient but does not document a precise room or route through the tower.
Location: Arcane Tower
Missable
07
Deliver the research ingredients
Return to Omeluum with both ingredients
Take Tongue of Madness and Timmask Spores back to Omeluum in the Myconid Colony. Once the requested materials are returned, Omeluum uses them to brew a potion for the experiment.
Location: Myconid Colony
Checkpoint
08
Prepare for the experiment
Choose the character who drinks the potion
When Omeluum has prepared the potion, select the character who will drink it. The identity matters because the character who consumes the potion is the one who receives the Survival Instinct tadpole ability.
Location: Myconid Colony
TipIf you are choosing based on the reward, assign the drink to the character you want to receive Survival Instinct.
09
Resolve Omeluum's research
Complete the experiment
Have the selected character drink Omeluum's potion and allow the attempted transformation to play out. The procedure fails to remove the parasite, but it grants a temporary understanding of the parasite's nature.
Location: Myconid Colony
Watch outDo not complete this step expecting the infection to be cured; the quest's stated result is that the parasite remains.
10
Receive the immediate rewards
Collect the quest reward
After the experiment, the character who drank the potion receives Survival Instinct. The party can also obtain or purchase the Ring of Mind-Shielding from Omeluum, subject to the precise acquisition method available in the playthrough.
Location: Myconid Colony
11
Check Omeluum's later inventory
Revisit Omeluum as a trader
Following the quest, Omeluum becomes a trader. His later inventory includes useful items such as the Pearl of Power Amulet and Creation's Echo, giving the party a reason to return after the investigation is complete.
Location: Myconid Colony

Mission mechanics

This quest is built around an ingredient-delivery loop rather than a conventional boss encounter. The party first establishes contact in the Myconid Colony, then travels to the Arcane Tower to obtain two specifically named research materials before returning to the quest giver. The source pack does not confirm a mandatory battle sequence, a skill-check requirement, or a particular exploration route.

The potion is the quest's defining interaction. Omeluum brews it only after receiving Tongue of Madness and Timmask Spores, and a player-selected character drinks it to attempt a transformation of the tadpole. The result is deliberately limited: the parasite survives, while the experiment provides temporary insight into its nature and awards Survival Instinct to the drinker.

The quest also changes Omeluum's practical role after completion. In addition to the immediate reward and the possibility of acquiring the Ring of Mind-Shielding, Omeluum becomes a trader. That later inventory includes the Pearl of Power Amulet and Creation's Echo, so the quest has an ongoing shopping consequence beyond its research scene.

What works and what does not

Strengths

The objective chain is clear once Omeluum has explained the research: collect two named ingredients and bring them back.
The quest gives the player a meaningful choice over which character receives Survival Instinct by selecting the potion's drinker.
Its outcome adds a distinct perspective on the parasite without falsely resolving the larger infection problem.
Completion improves Omeluum's usefulness as a trader, extending the value of the encounter beyond the quest conversation.

Weaknesses

The procedure does not remove the parasite, so it should not be approached as a cure quest.
The supplied sources do not verify exact ingredient locations inside the Arcane Tower, which can make the search less direct for players relying on this information alone.
The precise way to obtain or purchase the Ring of Mind-Shielding is not fully documented in the supplied fact pack.

Best uses

Complete the quest when you want Survival Instinct on a particular party member.
Return to Omeluum later if you want to inspect his trader inventory for the Pearl of Power Amulet or Creation's Echo.

Quest checklist

Reach the Myconid Colony in the Underdark.This is the quest's starting location.
Speak with Blurg.Blurg can introduce the party to Omeluum.
Speak with Omeluum about the parasite.Accept the investigation before searching for the ingredients.
Travel to the Arcane Tower.The two research ingredients are found in this location.
Obtain Tongue of Madness.The exact pickup location is not verified in the supplied material.
Obtain Timmask Spores.The exact pickup location is not verified in the supplied material.
Return both ingredients to Omeluum.Omeluum uses them to brew the experimental potion.
Select the character who will drink the potion.That character receives Survival Instinct.
Complete the experiment.The parasite remains after the attempted transformation.
Check Omeluum's trading inventory afterward.Later offerings include the Pearl of Power Amulet and Creation's Echo.Optional
Acquire the Ring of Mind-Shielding if desired.The source confirms it can be obtained or purchased from Omeluum, but not the exact method.Optional

Items connected to the quest

01
Tongue of Madness
Where: Arcane Tower
One of the two ingredients required for Omeluum's research.
Missable
02
Timmask Spores
Where: Arcane Tower
The second ingredient required before Omeluum can brew the potion.
Missable
03
Ring of Mind-Shielding
Where: Omeluum in the Myconid Colony
An item that can be obtained or purchased from Omeluum; the supplied material does not specify the exact acquisition route.
04
Pearl of Power Amulet
Where: Omeluum's later trader inventory
A useful item offered by Omeluum after the quest, according to the supplied source.
05
Creation's Echo
Where: Omeluum's later trader inventory
Another item associated with Omeluum's post-quest trading inventory.

Rewards and drops

Survival Instinct
The character who drinks Omeluum's potion receives this tadpole ability.
Ring of Mind-Shielding
The party can obtain or purchase this item from Omeluum.
Omeluum's trader inventory
After the quest, Omeluum becomes a trader offering items including the Pearl of Power Amulet and Creation's Echo.

AftermathSpoilers

The parasite is not removed

Omeluum's potion does not cure the party's infection. The experiment fails to remove the parasite, but it grants temporary insight into the parasite's nature and awards Survival Instinct to the character who drank the potion. Omeluum also remains useful afterward as a trader.

Trivia

Omeluum is notable among mind flayers because it has broken free from the Elder Brain's control.
The quest uses Tongue of Madness and Timmask Spores as its two named research ingredients.
The reward is assigned to the character who drinks the potion rather than automatically being tied to the party leader.
Omeluum's role changes after the investigation, as the character becomes a trader offering additional equipment.

Sources

Help Omeluum Investigate the Parasite — bg3.wiki

Relationships

characters

OmeluumQuest giverThe independent mind flayer who investigates the party's parasite.
BlurgIntroductionThe hobgoblin who can introduce the party to Omeluum in the Myconid Colony.

locations

Myconid ColonyStarting locationThe Underdark settlement where the quest begins and the experiment takes place.
Arcane TowerIngredient locationThe location where Tongue of Madness and Timmask Spores are collected.