Field Briefing
- Encounter type
- World Boss
- Location
- Nautili Tunnel
- Anomalous Realm
- Deep Blue Sorrow
- Classification code
- R-1851[Or]
- Difficulty
- Class IV
- Stamina cost
- 60 per clear
Sea Prisoner is a weekly Anomaly Hunt world boss in Neverness to Everness, encountered around Nautili Tunnel. It does not roam the open city — instead it presides over its own Anomalous Realm, "Deep Blue Sorrow", filed by the Bureau under classification code R-1851[Or], which you step into to begin the hunt.
In terms of challenge, the Bureau rates the realm at Class IV difficulty. Each clear draws 60 stamina, so it is best slotted into a weekly run when you can spend the resin on the rewards.
Clearing Sea Prisoner pays out a loot pool of 4 rewards from its world boss table, headlined by the legendary Hunter Level EXP and Magic Thread. The full reward table with drop chances is listed below; tap any item to look it up in the catalogue.
The dossier below preserves the Monster Manual entry as it appears in game; the field notes that follow collect the rumors and sightings the Bureau logged before Sea Prisoner was formally catalogued, and the linked Anomaly case file holds the Bureau's full classification record.
Hunt Dossier
Within this Anomalous Realm, a massive, constantly-suffering whale is bound by whaling ship chains. The whale searches for someone powerful enough to help destroy its bindings.
In Its Own Words
“Its song is a cry for help.”
Rumors & Sightings
Who knows what kind of encounter awaits you when you hear a strange song echoing through the tunnels…?
Rewards & Drops
Sea Prisoner drops the following 4 rewards from its world boss reward table. Drop chances are taken from the in-game loot sequence; select any item to open it in the item database.
