Baldur's Gate 3 Full Walkthrough -Emerald Grove - Inner Sanctum
This guide details the exploration of the Emerald Grove and the Tiefling Refuge in Baldur's Gate 3
Return to the Emerald Grove and head to the location marked in the image below to find the healer Nettie.

Enter the Druid's Chambers and speak with Nettie.

During the conversation, Nettie will discover the Mind Flayer tadpole in our brain and take us to a secret room.

After entering the secret room, Nettie will try to poison us. You can use intimidation or persuasion to make her give you the antidote.
If you fail the check, you will be poisoned. You can then choose to kill Nettie to get the antidote from her body, or you can use a Mind Flayer tadpole power to break free from the poison's effects.

After resolving the poison issue, you can explore the room. On the table in the center of the room, you can find a [Mind Flayer Parasite Specimen].

On the body of the Drow, you can find the [Key to the Secluded Library].

Use the key to open the stone door to the Secluded Library.

In the Secluded Library, you can find a rare glaive, [Sorrow], on the table.

On the bookshelf, you can find a note. Reading it reveals that the druids are performing a ritual to seal off the grove from the outside world.

After looting the library, return to the main area of the Emerald Grove and head to the Tiefling Refuge.

Upon entering the Tiefling Refuge, you will see a group of Tieflings training. After a conversation, Wyll will join the party.

To the left of the training area, you can find the Tiefling child Doni. He won't speak to us.

Opposite Doni, you can find the Tiefling child Mattis, who sells various items.

If you have a character with high perception, you can see through the child's tricks. After a conversation, you can get a lucky ring from him.

After talking to Mattis, turn around and you will find that Doni has disappeared. We will find him later.

Continue deeper into the refuge. You will see a Tiefling child being threatened by a druid.

You can intervene to save the child. After the druid leaves, you will learn that the child was trying to steal the druids' sacred idol.

After the conversation, the child will tell you about a secret passage into the grove. This is the "Investigate the Beach" quest.

Continue forward and you will see the captured goblin, Sazza. You can talk to her to learn about the goblin camp.

If you choose to free Sazza, you will need to kill the Tieflings guarding her. This will make all the Tieflings in the grove hostile towards you.
It is recommended to leave her for now and come back later.

Next, we will do the "Investigate the Beach" quest. Go to the location marked in the image below.

Jump down to the beach below.

On the beach, you will see the Tiefling child Mirkon being lured by harpies.

The harpies will use their songs to charm your characters. You can use the "Help" action to wake up charmed characters.

After defeating the harpies, talk to Mirkon. He will tell you about the secret passage and give you a key.

The secret passage is located in the water. You can use the key to open the stone door.

Inside the passage, you can find some loot. The passage leads to the Tiefling Refuge.

Return to the Tiefling Refuge and find Zevlor. Tell him about the goblin camp and the druids' ritual.

Zevlor will ask you to help him deal with the goblin leaders. This will start the "Defeat the Goblins" quest.

After talking to Zevlor, the initial exploration of the Emerald Grove is complete. Next, we will head to the Blighted Village.
