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I received word that Doctor Li is returning to us. How cooperative do you think she'll be?Arthur Maxson

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 with convincing Madison Li to return to work for the Brotherhood of Steel.

Quick walkthrough

Brotherhood of Steel main quest: From Within
Speak with Elder Maxson.
Find Madison Li in The Institute.
Access the FEV lab.
(Optional) Convince Dr Li with speech check.
Locate Brian Virgil personal log 0176 holotape.
Take it to Dr Li.
Speak to Elder Maxson.
Reward: 350+ XP
Leads to: Liberty Reprimed

Detailed walkthrough

During the infiltration of the Institute, return to Elder Maxson and speak with him to start the quest. He orders the Sole Survivor to make contact with Madison Li and convince her to work on a "special project" for the Brotherhood of Steel. Return to the Institute, find Doctor Li within the Advanced Systems division and let her know that the player character has been sent to find her (or tell her directly that they are sent by the Brotherhood.)

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

In order to ensure Doctor Li's trust, one must agree to recover evidence regarding an accident that supposedly killed her colleague, Doctor Virgil. His former lab is in a sealed section of the Bioscience Division. There's a back entrance with a master lock terminal in the main room of the Bioscience lab leading directly to the main room (avoiding all of the security), and also the main entrance to it found at the end of some seemingly abandoned storage halls and rooms, behind a novice-locked door. Once in the FEV lab, travel through it to the end room, where the Brian Virgil personal log 0176 holotape which must be returned to Li is located. The lab will be defended by traps, several turrets and a level-dependent assaultron which may be hard to fight for low-leveled player characters due to the sealed environment but is otherwise uninhabited. Once in the last room, locate the holotape, which can be found by an active terminal. While there, one can also pick up Virgil's serum, on a nearby table, that must be returned to him as part of Virgil's Cure.

Return to Doctor Li and hand over the holotape. Upon next leaving the Institute, return to the Prydwen and inform Elder Maxson.

Quest stages

Quest stages
StageStatusDescriptionLog Entry
10 Speak with Elder MaxsonI should report to Elder Maxson on the Prydwen as soon as possible.
30 Locate Doctor LiDuring my infiltration of the Institute, Elder Maxson has ordered me to make contact with a Doctor Madison Li and convince her to work on a "special project" for the Brotherhood of Steel.
50 Retrieve evidenceIn order to ensure Doctor Li's trust, I've agreed 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.
65 Kicked out of the Institute - Return to Maxson with bad newsI've caused a disturbance within the Institute which has made my mission to secure Doctor Li's assistance impossible. I should return to Elder Maxson with the bad news.
70 Doctor Li was slain - Return to Maxson with bad newsDoctor Li has been killed. I should return to Elder Maxson with the bad news.
80 Speak with Elder MaxsonI've provided Doctor Li with evidence that the Institute was lying about Doctor Virgil's "death." As a result, she's agreed to return to the Brotherhood of Steel.
255Quest finishedQuest completeI've informed Elder Maxson that Doctor Li is on her way back to the airport to work on the Brotherhood of Steel's "special project."
355Quest failedQuest failed

Companion reactions

Be gung-ho about using the teleporterLikeLikeLikeLoveDislikesNo reactionDislikesNo reactionNo reactionLikeNo reactionNo reactionDislikesDislikes
Joke about being beamed into solid rockLikeNo reactionDislikesDislikesNo reactionNo reactionLikeNo reactionNo reactionDislikesNo reactionDislikesNo reactionLike
Call using the teleporter a "suicide mission"LikeNo reactionDislikesDislikesDislikesNo reactionLikeNo reactionNo reactionLikeNo reactionDislikesLikeLike


  • If the Sole Survivor is banished from the Institute during this quest, Elder Maxson will be disappointed and will advise of a contingency plan. The Brotherhood questline will then proceed with Diamond City's Professor Scara rather than Doctor Li.
  • Professor Scara can be acquired only if Doctor Li is dead and/or the Institute is hostile to the player, no matter how antagonistic the conversation with Doctor Li. There is no speech option to lock-out recruiting Doctor Li, and this quest cannot be completed with Professor Scara if the Institute is not hostile.
  • Even if the player character tells Dr. Li that Virgil is still alive and that they have met him, she still will not believe the Sole Survivor and accuse them of trying to get out of having to do any work.
  • It is not possible to present Virgil's holotape to Dr. Li unless the quest has been started previously by Elder Maxson.


PCPC Playstation 4Playstation 4 When this quest is active at the same time as Institutionalized, you may not be able to receive the Pip-Boy fast travel upgrade from Doctor Li, which prevents you from leaving the Institute; attacking/killing any scientist seems to circumvent this, as it causes you to be kicked out of the Institute.[verified]