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Edgar Swann

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Edgar Swann
Fo4 Swan.png
Biography and appearance
RaceInstitute super mutant
AffiliationThe Institute (formerly)
RoleFEV experiment
LocationBoston Common
Swan's Pond
Combat StyleMelee/Ranged
aggressionAttacks on sight
Derived StatsResistance:
Ballistic: 145
Energy: 100
Radiation: Immune
Poison: 100
Editor IDDN131_LvlSMBehemothSwan
Base ID00056b7cRef ID00000000

Swan is a legendary boss living in Swan's Pond, the center of the Boston Common in 2287.

Don't let the name fool you: Swan is a gigantic super mutant behemoth and about as ungraceful as they come. He rises from the Boston Common pond to squash anything that comes too close or makes the mistake of shooting the thick armored shell he fashioned for himself out of fragments of swan boats.


His story is a tragic one: Rather than a random monster, Swan was once Edgar Swann, a low level Institute worker who found himself on the wrong end of the law after stealing a couple of cigars. This all occurred around 2178 as the Institute was first developing its organic slave race.[1] During the trial, he was offered a choice of participating in the FEV experiments that just started. Originally presented as "probation", Edgar was provided with food, water, shelter, and infected with the Institute's own strain of FEV.[2] Within six days, his body began to remake itself, leading to constant ache and disorganized thoughts as the strain forced the changes.[3]

Two weeks later, the evolution stabilized, with a threefold increase in muscle mass and major increase in intellectual capacity: In short, a full success. Swann even applied to the research team, to continue the experiment himself.[4] Unfortunately, the fundamentally unstable nature of the strain led to his mental capacity peaking 19 days from infection and started to rapidly deteriorate by the 21st, manifesting alongside repeated seizures and a sudden destabilization of his mutations.[5] With a poor prognosis, Swann's fears of being dumped to the Commonwealth eventually realized as he was ejected onto the surface, having mysteriously retained the experiment logs.[6]

After his expulsion and abandonment, Swann eventually made his way to Boston Common, an abandoned park in the downtown ruins, where he made his home in the groundskeeper shack. It was here he finally lost his mind to his mutation,[7] eventually creating armor from the swan boats of the pond and developed into a behemoth.

It was only after his arrival that the Common became a place not only to be avoided at all costs, but to be fundamentally feared.[8][9] The bodies of countless victims who did not heed the warnings are strewn about the Common.[10][11][12][13]

Interactions with the player character

Interactions overview

This character has no special interactions.


Icon armored vault suit.png
Assault carbine icon.png
Icon briefcase.png
Carried items
Swan boat fragments (15)
Icon male severed head.png
Drops on death


Edgar Swann appears only in Fallout 4.


  1. Swann's occupation was janitor, this could only have occurred before the first generation of synths took over the occupation.
  2. Experiment Log J-32, Day 1
  3. Experiment Log J-32, Day 6
  4. Experiment Log J-32, Day 14
  5. The Sole Survivor: "Do you remember Edgar Swann?"
    Brian Virgil: "Swann? ...Yes, I saw his file. He was one of our first test subjects, years ago. His mutations destabilized. Started turning into a Behemoth. ...You think that could happen to me? Maybe I'm fine for a few months, a few years, but... god. I couldn't live like that."
    (Brian Virgil's dialogue)
  6. Experiment Log J-32, Day 21
  7. Swan's note
  8. Cait: "We're takin' a big chance walkin' though the Common. Just sayin'."
    (Cait's dialogue)
    Deacon: "The Common looks peaceful, but no one sane goes inside."
    (Deacon's dialogue)
    Hancock: "Hey. This is the Common. You sure you don't just wanna go around?" (Hancock's dialogue)
    Robert MacCready: "Wait, this the Common. We need to get the hell out of here... unless you like being killed."
    (Robert MacCready's dialogue (Fallout 4))
    Nick Valentine: "Lot of my cases dead end in Boston Common. I'd prefer not to join them." (Nick Valentine's dialogue)
    Piper Wright: "Blue, we're walking right into Boston Common. People don't come back from here."
    (Piper Wright's dialogue)
    Preston Garvey: "General, Boston Common has a bad reputation. People just don't come back from here, and nobody knows why."
    (Preston Garvey's dialogue)
  9. Raider dialogue
  10. The holotape Raider's advice is found beside the skeletal remains of the raider who tried to create barricades to kill Swann.
  11. The Fugitives' holotape is found in the hand of a partial skeleton resting against a monument at the edge of the Common.
  12. The Torn letter is on the corpse of On Mikail near Swan's Pond.
  13. The Torn note is on the corpse of Kath; propped up against a tree.
Institute flag.png
Fo4 Institute Seal.png