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Gametitle-FO4

From Within is a Brotherhood of Steel main quest in Fallout 4. The quest takes place in the Institute where the player character is tasked to convince Madison Li to return to work for the Brotherhood of Steel.

Quick walkthrough

  1. Locate Doctor Li.
  2. Speak to Doctor Li.
  3. Retrieve evidence to convince Doctor Li.
  4. Bring the holotape to Doctor Li.
  5. Report to Elder Maxson.

Detailed walkthrough

During your infiltration of the Institute, Elder Maxson orders you to make contact with a Madison Li and convince her to work on a "special project" for the Brotherhood of Steel. Find her within the Institute and let her know you've been sent to find her (or you can be direct and tell her the Brotherhood sent you).

There is also a speech check (Medium / Hard) when you can ask her if she's happy, and complete a series of difficult, fast-talking challenges to convince her. If she agrees, you can skip to the final objectives of the quest if you can agree to find evidence about Virgil's disappearance from his laboratory.

In order to ensure Doctor Li's trust, you agree to recover evidence regarding an accident that supposedly killed her colleague, Doctor Virgil. His former lab is in a sealed section of the BioSciences Division. To access it you can: (Master) unlock the FEV lab entry terminal by the laser grid gate or (Novice) unlock the FEV lab door.

Venture through the FEV lab, which has automated turret security, synths and an assaultron. Locate the holotape (Brian Virgil personal log 0176) at the laboratory.

Return to Doctor Li and hand over the holotape. Then continue with the main quest Institutionalized. Once you leave the Institute, return to the Prydwen and inform Elder Maxson.

Quest stages

StageStatusDescription
10 Speak with Elder Maxson
30 Locate Doctor Li
50 Retrieve evidence
65 Kicked out of the Institute - Return to Maxson with bad news
70 Doctor Li was slain - Return to Maxson with bad news
80 Speak with Elder Maxson
255Icon checkQuest complete
355Icon checkQuest failed

Notes

  • During this quest the player character can find the serum to cure Virgil.
  • You can enter the FEV lab by hacking a terminal in BioScience to skip the combat part.
  • If you are banished from The Institute during this quest, Elder Maxson will be very upset at you, and will inform you of a contingency plan. The brotherhood quest line will then proceed with minor changes.
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