- What to know
- Fish It Rumor quest details
- The Rumor quest location
- Rumor quest explained
- How to find the hidden laboratory
- Fishing inside the laboratory
- How to complete the Rumor quest step by step
- Quest rewards and progression value
- Why so many players miss the Rumor quest
- How Rumor quietly sets up future Crystal Depths content
- Fish It Charms Update you should not miss
What to know
- Rumor is a short exploration-based quest added in Crystal Depths Update Part 2
- The quest starts on Kohana Island with two NPCs many players ignore
- It introduces the hidden laboratory area, which matters later
- Completion only requires one successful fish catch inside the lab
In Fish It, the loudest quests usually get all the attention. Long mutation grinds, rare fish hunts, and high-value rewards tend to pull players in immediately. The Rumor quest is the opposite. It’s quiet, subtle, and incredibly easy to miss—but skipping it means missing an entire location and future progression hooks tied to Crystal Depths Update Part 2.
This guide walks through the Rumor quest from start to finish, explains why it matters beyond its simplicity, and shows how to complete it cleanly without confusion.
Fish It Rumor quest details
| Quest detail | Information |
|---|---|
| Quest name | Rumor |
| Update | Crystal Depths Update Part 2 |
| Starting location | Kohana Island |
| Quest givers | Bill and Phil |
| Core requirement | Catch one fish in the laboratory |
| Quest type | Exploration and fishing |
The Rumor quest location
The Rumor quest begins on Kohana Island, but unlike most quests, it does not announce itself loudly. The quest givers are Bill and Phill, two NPCs standing casually on the island. Many players run past them repeatedly without interacting, assuming they’re background characters.

Once you speak to Bill and Phill, they mention strange rumors surrounding a hidden laboratory. This conversation is enough to activate the quest. There are no item checks, rod requirements, or prior quests blocking access, which is why many players accidentally complete Crystal Depths content without ever realizing this quest exists.
Rumor quest explained
Rumor is designed to introduce players to a new laboratory area added in Crystal Depths Update Part 2. Rather than handing you a waypoint or marker, the game expects you to explore and discover the location organically.
This design choice is intentional. The quest teaches you to pay attention to environmental clues instead of relying on direct guidance. That’s also why so many players miss it entirely.
The goal is simple: locate the laboratory, fish inside it once, and report back.
After accepting the quest, stay on Kohana Island and begin searching for the laboratory entrance. The lab is not accessed through a door or teleport. Instead, it’s hidden behind environmental geometry and accessed via a ladder.

The ladder leads downward into a concealed interior area. Many players see the ladder and assume it’s decorative or unfinished scenery, which is why the lab goes unnoticed.
Climbing down places you inside the laboratory, a compact indoor fishing environment with a single valid fishing spot.
Fishing inside the laboratory
Once inside the lab, you’ll notice that not every water surface is fishable. There is one specific fishing spot designed for the quest. Casting outside this spot will not count, even if you successfully reel something in elsewhere.

The required action is simply to catch one fish while inside the laboratory. There are no rarity requirements, no bait restrictions, and no mutations involved. Any valid catch completes the objective instantly.
While inside, you may also encounter Scientist Jameson, an NPC tied to other Crystal Depths research quests. His presence is a subtle hint that this area becomes more relevant later.
How to complete the Rumor quest step by step
Step 1: Talk to Bill and Phil on Kohana Island
Interact with both NPCs to activate the Rumor quest dialogue.

Step 2: Search Kohana Island for the laboratory entrance
Look for a ladder leading down into a hidden area rather than a traditional building entrance.

Step 3: Enter the laboratory
Climb down the ladder to access the interior lab environment.

Step 4: Fish at the designated lab fishing spot
Cast your rod in the correct location and catch any fish.

Step 5: Return to Bill and Phil
After the catch, go back to Kohana Island and speak with the quest givers to complete the quest.

Quest rewards and progression value
| Reward type | Description |
|---|---|
| Progress unlock | Access and awareness of laboratory area |
| Indirect benefit | Unlocks future NPC interactions |
The Rumor quest does not shower you with high-tier loot, but its progression value is far more important than its immediate reward. Completing it formally introduces the laboratory area into your progression state, ensuring future quests and NPCs behave correctly.
Players who skip Rumor sometimes encounter confusion later when research-related quests reference locations they’ve technically never “discovered.”
Why so many players miss the Rumor quest
Rumor is easy to miss because it lacks urgency. Bill and Phil do not stand near fast travel points, the quest does not appear flashy, and there are no dramatic objectives attached.
Additionally, Crystal Depths Update Part 2 introduced multiple overlapping quests. Players focused on Sample Collection, Taking Measurements, or mutation farming often leave Kohana Island quickly, never stopping to talk to side NPCs.
The laboratory entrance itself blends into the environment, reinforcing the idea that it’s optional or decorative.
How Rumor quietly sets up future Crystal Depths content
Rumor is a foundation quest. It exists to shift your mindset from surface-level exploration to layered environments. The laboratory is one of the first areas that breaks the “open island” pattern Fish It relies on early in the game.
By teaching players to look vertically and interact with hidden spaces, Rumor prepares you for more complex exploration quests later in Crystal Depths. Skipping it doesn’t block progress immediately—but it creates friction later.
Fish It Charms Update you should not miss
The Fish It update added a new Charms system, letting players equip Charms that improve fishing odds for certain fish and enhance gameplay depth. Currently, only a couple of Charms are available, but they represent a shift toward more strategic play by influencing catch chances. The update also introduced several new redeemable codes giving items like Leviathan Scales, Luck II Potions, and exclusive rewards to help progression. Players can redeem codes by opening the in-game shop and entering them in the code box for free cash, potions, baits, and more.