One of the main problems you and your heroes face inBaldur’s Gate 3is being infected by a Mind Flayer Parasite. You will come across many different quests that are all in an attempt to cure you of your disease. One of the first quests that leads to this is Lae’zel’s attempt to find the nearest Githyanki Creche.

The Githyanki Creche can be found through the Mountain Pass. Upon reaching the Rosymorn Monastery, you can find a Githyanki in the infirmary who is actively studying Mind Flayer parasites. Some of these quests in search of a cure end terribly, so it’s wise to tread carefully when trusting someone to prod your brain.

Baldur’s Gate 3 Ghustil

Updated July 13, 2025 by Sharnelle Earle:We have updated this article by reorganizing information to make things more clear and concise. you may be sure to find exactly what you’re looking for in relation to the Find The Githyanki Creche quest. Purifying yourself of the Illithid parasite is top priority in Baldur’s Gate 3. Not every cure works and can even induce debuffs, so it’s important to be prepared.

Should You Tell Ghustil That You Are Infected?

When you first discuss the effects of the parasite with Ghustil, you are able to either admit you are infected or pretend that you know a friend who is. If you pretend,there is no other way to proceed other than to tell her it is you.

She will not get angrywith you if you admit that you are infected. She willagree to cure you by using a nautilus device called the Zaith’isk.When you approach the strange chair, Lae’zel insists on using it first.

Baldur’s Gate 3: Ghustil and Lae’zel

Should You Let Lae’zel Enter The Zaith’isk First?

Lae’zel will decrease in Approvalif you do not let her use the Zaith’isk first. She will gain Approval if you do.If you do not let her go first, she will be angrywith you because all she has wanted since she met you was to be cured by her people.

+3 Lae’zel

Baldur’s Gate 3 Lae’zel inside zaith’isk

Let Lae’zel Go First

+10 Lae’zel

It does not matter who goes into the Zaith’isk first.Whoever uses it will start to die. Your Dream Visitor or Guardian will speak to you and warn you to stop at once.

Baldur’s Gate 3 player in zaith’isk while party and ghustil watch

You will have to passvery difficultSaving Throwskill checks in order to resist the machine or convince Lae’zel to stop.

How To Pass Every Saving Throw In The Zaith’isk

You shouldsave before enteringthe Zaith’isk in order to retry this segment if you fail.

The Saving Throws required to withstand the damage of the Zaith’isk are intentionally challenging. Before entering the Zaith’isk, you should make sure you have everything equipped possible that could increase your stats.

Baldur’s Gate 3 Ghustil looking through ocular technology at parasite

While either you or Lae’zel are inside the device, there will be Saving Throws different from the ones used to withstand the devices' power. These Throws are to convince yourself or Lae’zel to break free and are the hardest Saving Throws.

You will gain Approval from Lae’zel throughout this segment depending on if youencourage her while she is insideor if yousucceed in skill checkswhile you are inside.

How To Increase Stats

Because these are all based on dice rolls, there is no guarantee you will succeed. The best option you have is to increase your stats using items such asAuntie Ethel’s Hairin Act One which grants a permanent bonus of +1 to any stat.The Mirror of Lossin Act Threecan grant you +2 of any stat permanently.

Some armor and accessories in the game, such as amulets, can grant the wearer increased ability scores, so make sure to check your camp chest and inventory for useful items.

TheBasket Full of Equipment modhas accessories that grant the wearer increases in every ability score.

18 Constitution (or others, depending on your class)

What Happens If You Fail The Zaith’isk?

If you fail to withstand the Zaith’isk, whoever was inside will get-1 points towards every ability scorethey used in attempting Saving Throws. This can be reversed byconsuming a Mind Flayer Specimen.

If you succeed in withstanding the Zaith’isk, you will gain theAwakened buffpermanently.

Should You Lie To Ghustil

It is okay if you fail each skill check. The Dream Visitor will stop you or Lae’zel from dying by removing you from the device. Ghustil becomes upset because her machine is broken, andshe still wants your parasite extracted.

You can eitherconvince Ghustil that the Zaith’isk worked or argue with her.If you cannot convince her that the machine worked, she will run out of the room and lock the door behind her. You can lockpick the door.

Doing this scene with Ghustil before speaking with the Inquisitor willallow you the opportunity to persuade Lae’zelfrom aggression later on.

The entire infirmary will fight you if you do not convince Ghustil.You will have to kill her and some young Githyanki. Therest of the Creche will not become hostileafter, so you are still free to walk around after this fight.

Lae’zel will demand youspeak to the captain about how the Zaith’isk was tampered with.Despite her insistence, youcannot actually discuss this matter with Kith’rak.