The legendary "King of the Deep" has made an appearance! This beast has caused enough suffering - it must be defeated!
This errand is available after completing the main story.
Your target is hanging out in the water by Hermitage. However, it must be reached by boat, so board the Sea Cow and travel far west to encounter the Prince of Whales! Have your Bluster Blades and other storm-inflicting weapons equipped, and have your Drongo-based familiar blast away with its strongest storm tricks to dispose of this one quickly.
Defeat it and you'll complete the bounty hunt, return to the Swift Solutions to claim your reward.