First identify whether the Harpooner is chasing the lure or already hooked. During the chase, Rainbow Fin must move slowly enough for the predator to reach it, without remaining motionless for too long. After the bite, oppose the fish's movement, drain its Stamina, and reel while managing Line Tension.
These are different stages of the demo's fishing sequence. Reeling harder cannot solve every failure: it may pull the lure away before a bite, or strain the line while a hooked fish is still resisting.
Identify which stage is failing
| What happens | What to check |
|---|---|
| No fish follows the lure | Rainbow Fin selection and the splash zone |
| A fish follows but never reaches the lure | Retrieval may be too fast |
| The follower turns away after a long pause | The lure may have stopped too long |
| A hooked fish resists being pulled closer | Fish Stamina and the direction of your rod movement |
| The line breaks | Line Tension during the fight |
| The fish reaches the boat but is not collected | The separate Land Fish interaction |
A Harpooner is a predatory fish. It is not the Grappling Hook Gun or a harpoon tool, and repeatedly firing the retrieval weapon does not replace the fishing interaction.

Select Rainbow Fin at the predator fishing spot
The Harpooner contract follows the earlier boat work and peaceful-fish progression. Gill and Bozur introduce a blueprint for predatory-fish bait when they ask for Harpooners.
Craft Rainbow Fin at the Workbench, then select it in the fishing tackle interface. It uses Fish Meat, metal and Chromatic Scales; use the quantities shown by your current crafting interface rather than substituting an unrelated lure.
Chromatic Scales are tied to the earlier peaceful-fish processing route. If you spent your supply on hull work, check the ingredient requirement before sailing to the predator spot. A whole fish in storage is not automatically the processed material the recipe requests.
At the target area, confirm the fishing spot identifies Harpooners. Select the fishing interaction and Rainbow Fin before casting. Being near water with the correct quest active is not enough if the tackle selection still has the previous bait equipped.
The ordinary Earthworm and Wind-Up Tin belong to earlier fishing situations. Harpooners require the moving-lure approach introduced by Predator Fishing.
Cast inside the splash zone
Aim the bait into the disturbed patch of water used by the fishing spot. The predator-fishing instruction identifies this as the splash zone.
A cast outside the active area may produce no useful response even with the correct bait. Correct the cast before treating the absence of a bite as a reeling failure.
Once Rainbow Fin hits the water, begin retrieving it. Unlike the introductory waiting sequence, the predator notices and follows movement. Leaving the lure still throughout the attempt misses that part of the interaction.
Watch the water and the follower rather than assuming the cast is successful simply because the lure is moving. The immediate goal is to bring the fish onto the bait, not to return an untouched lure to the boat as quickly as possible.

Adjust the retrieval pace before the bite
The chase has two failure directions:
- Too fast: the Harpooner cannot keep up with the lure.
- Stopped too long: the predator loses interest.
Use controlled retrieval that keeps the bait moving within reach. If the fish follows but never catches up, ease the pace on the next attempt. If it abandons the chase after a pause, maintain movement instead of repeating a long stop.
There is no verified universal timing pattern, exact speed setting or number of clicks to prescribe. The behavior of the pursuing fish is the useful feedback.
If the lure reaches the boat without a bite, cast again into the splash zone. Change one part of the attempt so you can tell what helped: correct the landing area first, then adjust the pace. Discarding the correct lure after a single missed pursuit is unnecessary.
A follower turning away is different from a fish snapping the line. In the first case the bite has not happened; in the second case you are already in the hooked-fish fight.
Tire a hooked Harpooner before forcing the retrieve
After the bite, return to the rod-control rules introduced earlier in the game. Move the rod against the fish's direction:
- If it pulls left, oppose that movement to the right.
- If it pulls right, oppose it to the left.
- Follow changes of direction instead of holding one side continuously.
- Watch the Stamina meter while the fish tires.
- Reel it closer when its resistance has been reduced.
Zero Stamina does not mean the fish is already aboard. It can still be at a distance, and another burst of resistance can interrupt the retrieve. Repeating the tiring stage can therefore be part of landing one catch, rather than evidence that the game forgot your progress.
The fishing tutorial offers a choice of rod-control scheme. If repeatedly reversing direction is awkward with the mouse, check the available control preference. Changing the input method does not change the underlying task: oppose the fish, monitor its strength and retrieve at a manageable moment.
Watch Line Tension during the final approach
Line Tension measures strain, not the fish's remaining Stamina. Reeling while a fish is still resisting, or letting it get too far away, can strain the line. At the limit, the line breaks.
Do not focus only on the shrinking distance to the boat. If tension is climbing, ease off the retrieve and deal with the fish's renewed movement. An almost-landed fish can still escape if the line reaches its limit.
There is no supported need to buy a particular stronger rod just to complete this contract. Diagnose the stage and controls before assuming the current equipment is incapable of landing the fish.

Finish the landing and keep the contract catch
Once the fish is close enough, use Land Fish. Reeling it beside the boat and completing the landing are separate actions.
Then keep the fish rather than releasing it. Gill and Bozur's contract requires three Harpooners, so a fish that was fought successfully but released does not supply the delivery.
Return with the whole required catches. Do not process them in the Grinder before the contract hand-in. Processing turns a catch into a different resource and can force another fishing trip when the traders still need the fish themselves.
The practical completion check is simple: the fish has been landed, retained, and is available for the traders' contract. A successful chase alone does not finish any of those later steps.