- Inside the sewers, it is time to start your search for the missing people.
- Be sure that you are inside a complete set of Power Armor or in the Prototype Hazmat Suit that you collected from Nari.
- Head to the South, into the first large chamber.
- Going up the stairs into the Eastern chamber will lead you to a Workbench that has a few Feral Ghouls.
- Continue to the East to reach the far side if you go this way.
- You can now either head into the doorway where you can encounter some more Feral Ghouls or head to the right and into the open pipe.
- Going through the pipe you can find your way through to a large chamber with a generator.
- Check the generator for a Fusion Core, that you should collect if possible.
- From the generator, go up the nearby stairs to the Southwest.
- Head on through the doorway at the top of the ramp.
- There is a Feral Ghoul just inside the hallway, but you will want to head to the Northwest through the doorway.
- Going to the Northwest will lead you to a control room.
- Be careful here, because there is a Putrid Glowing One inside this room that you should defeat.
- Head over to the Western side of the console in the middle of the room.
- You will find the body of Lucy Harwick.
- Search her body to collect Lucy's Holotape to complete the mission.