Lost Soul

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Lost Soul is a Railroad radiant quest in Fallout 4. They are a chain of semi-random quests provided by Doctor Carrington in the Railroad HQ. He asks the Sole Survivor to help stray synths under danger after The Nuclear Option (Railroad) or The Nuclear Option (Minutemen). The number of locations is fixed, but the order in which they are given is random.

Quick walkthroughEdit

  1. Travel to the designated location.
  2. Rescue the synth.
  3. Report back to Doctor Carrington.

Detailed walkthroughEdit

Rescue the synthEdit

Your Pip-Boy will be updated with the location of the synth (they are different random locations), and Carrington will give you a synth care package to be delivered to a rescued synth. Travel to that location and eliminate the variable opposing forces however you see fit, then give the package to the synth.

Report back to CarringtonEdit

Return to Carrington at the Railroad HQ. He will congratulate you on a job well done and give you 250 bottlecaps, and sometimes a weapon.

Possible locationsEdit

There may be several quest locations in this series, confirmed:

Quest stagesEdit

100 Rescue the synth
200 Report back to Doctor Carrington
300Quest finishedIcon checkQuest complete
9000Quest finishedIcon checkQuest failed


If followed, the Synth will head to Bunker Hill at a leisurely stroll, though not necessarily by the most direct route, and the game may teleport them a distance at points along the way. They'll generally flee when danger threaten, though enemies completely ignore them, and they may defend themselves with an Institute rifle. Once at Bunker Hill, they will enter the utility basement and wait indefinitely just inside the entrance.

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