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The Secret of Cabot House
Fallout 4

The Secret of Cabot House

Follow our comprehensive Fallout 4 walkthrough for The Secret of Cabot House quest, detailing every step from Parsons State Administration to Cabot House, including enemy encounters and crucial decisions.

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Follow our comprehensive Fallout 4 walkthrough for The Secret of Cabot House quest, detailing every step from Parsons State Administration to Cabot House, including enemy encounters and crucial decisions.

Walkthrough
  1. 1
    Follow Jack to the asylum. Loot guards and Raiders.
  2. 2
    Enter the asylum, proceed north-east, and clear out Raiders. Be wary of Berserk Raiders.
  3. 3
    Continue north-east up stairs, clear Raiders, and search the north-west room for a First Aid Box.
  4. 4
    Loot the wall Safe [Expert] in the north-west room.
  5. 5
    Follow Jack south-west through a room with lockers, then into a room with Radroaches and crates.
  6. 6
    Continue down stairs, through an office, and into a room where Jack reunites with Eddie.
  7. 7
    Question Jack about Lorenzo. Grab the Charisma Bobblehead from the desk. Check Eddie's terminal.
  8. 8
    Follow Jack back to the office, then north-west to the chained door.
  9. 9
    Jack unlocks doors to the east leading to the garden. Clear out Raiders on the ground and scaffolding.
  10. 10
    Head up the scaffolding, through a hole in the wall, and through a door to Parsons State Insane Asylum.
  11. 11
    Make your way west, then north to find a room with Raiders, including another Berserker.
  12. 12
    Backtrack south and loot the [Advanced] room for chems and five creepy monkey dolls.
  13. 13
    Return north to the cafeteria ruins and head down a ramp to the east.
  14. 14
    Follow Jack west, then south into a room with more Raiders.
  15. 15
    Fight east through a hole in the wall, then down a ventilation shaft to the isolation chambers.
  16. 16
    Loot the isolation chambers: one has a First Aid Box and chems, another has a Suitcase [Novice].
  17. 17
    Loot the last room to the south for a Syringer Rifle.
  18. 18
    Go down a hole in the floor to the north, through an office, and into a hallway with Raiders.
  19. 19
    Loot the cell to the east for chems.
  20. 20
    Head to the western-most room to the south to find a floor Safe [Advanced].
  21. 21
    Follow Jack down the elevator to the basement.
  22. 22
    In the basement, follow Jack south into a stone chamber, then east into a control room.
  23. 23
    Lorenzo talks to Jack. Exterminate the Raiders in the interior containment area, including their leader, Lefty (who has serum doses).
  24. 24
    After the Raiders are dead, choose to side with Lorenzo (endless Serum) or Jack (unique weapon).
  25. 25
    If siding with Lorenzo: Push the button near his cell to let him out. Jack flees.
  26. 26
    Search Lorenzo's cell for a Massachusetts Surgical Journal.
  27. 27
    Follow Lorenzo to a sealed containment door, which he blasts open.
  28. 28
    Leave the asylum via the elevator.
  29. 29
    Return to Cabot House. The Sentry Bot outside is hostile.
  30. 30
    Enter the house and confront Jack. Your dialogue choices affect Eddie's and Jack's reactions and potential speech checks.
  31. 31
    Lorenzo arrives and attacks. You can follow his plan to kill the Cabot family if you haven't made peace with them via a speech check.
Tips
  • Berserk Raiders are stronger in melee and more aggressive due to the serum. Engage them at range if possible.
  • The Charisma Bobblehead is located on a desk in the office where Jack reunites with Eddie.
  • Be sure to check Eddie's terminal for lore about the asylum's patients.
  • The isolation chambers contain a Suitcase [Novice] and a Syringer Rifle.
  • The basement contains a floor Safe [Advanced].
  • When choosing between Lorenzo and Jack, consider the rewards: endless Serum for Lorenzo, or a unique weapon for Jack.
  • If you choose to side with Lorenzo, you can find a Massachusetts Surgical Journal in his cell.
  • Be prepared for a hostile Sentry Bot outside Cabot House upon your return.
  • Dialogue choices at Cabot House can lead to speech checks with Eddie and Jack, influencing the situation.
  • Choice between endless Serum (from Lorenzo) or a unique weapon (from Jack).
  • Charisma Bobblehead
  • Massachusetts Surgical Journal
  • Experience points and loot from defeated enemies.

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