- What to know
- How to get the Crab Claw artifact from the crab scroll quest
- Locations for the crab scroll route
- How to get King’s Fortune from the giant cat quest in Spirit Roots
- How to get the Ruined Lantern from the Lightkeeper in Angller Cave
- Secret artifact rewards and stats
- How to plan the order so you do not waste time
- What to do after you claim the artifacts
What to know
- You are hunting three NPC questlines that reward secret artifacts, not geode drops
- Two of the three paths push you into deeper zones, so bring a deep-capable tube and an oxygen pod
- One quest requires a big cash payment, so it is smarter to delay it until you are financially comfortable
- The best synergy is stacking Ruined Lantern plus Crab Claw for very high oxygen for deep exploration
If you like exploring off the main path in Roblox‘s Abyss, these three quests are worth targeting because each one ends with a secret artifact you cannot just stumble into through normal artifact grinding. You will be moving between Forbidden Deep, Ancient Sands, Spirit Roots, and Angller Cave, so plan your dives and upgrades with depth and oxygen in mind.
| Secret quest path | Where you start | What you need before attempting | Main reward | Why it matters |
|---|---|---|---|---|
| Crab quest for Crab Claw | Crab beside Henry the harpoon seller | Scroll from deep area around 350–360 depth; deep-capable tube; oxygen pod | Crab Claw | Big oxygen and damage boost for general diving and fights |
| King Cat quest for King’s Fortune | Deepest area of Spirit Roots | Lost spirit tube or better (ruin tube, bath tube); 100,000 cash; fishing requirements | King’s Fortune | Steady sell-value boost that pays back over time |
| Lightkeeper quest for Ruined Lantern | Angller Cave after Lost Captain chain | Level requirement and Lost Captain quests to get Angller key; oxygen pod | Ruined Lantern | Huge oxygen, speed, and tube weight capacity increase |
How to get the Crab Claw artifact from the crab scroll quest
This quest begins with a crab you cannot understand until you bring it the right item.

Your goal is to retrieve the scroll from a deep cave and then return to Henry so the crab becomes a real quest-giver.
Step 1: Prepare for the scroll dive
Use a tube that can handle deep depth because the scroll sits around 350 to 360 depth, and bring an oxygen pod so you do not get forced to turn back early.

Step 2: Reach the area behind Grumpy Hank’s lair
As you go down, you will pass a visible building that is the lair of Grumpy Hank.

Instead of entering, you go behind that lair and look for a cave entrance.

Step 3: Enter the cave and loot the nearby chests
Inside, you will find a treasure chest, and it is worth grabbing it since you are already there.

Near it, you will see the scroll placed on a rock that looks like a crab, and there is also another chest behind that rock.

Step 4: Return to Forbidden Deep and hand the scroll to Henry
Once you give Henry the scroll, you will finally be able to understand and talk to the crab beside him. That is the real start of the crab’s questline.

Step 5: Complete the crab’s quest and claim the artifact
After you finish the crab’s quest, you receive the Crab Claw artifact, an unobtainable-style reward tied to specific NPCs rather than normal farming.

Locations for the crab scroll route
You will dive to the 350–360 depth range, pass Grumpy Hank’s lair building, then cut behind it into a cave that holds the crab scroll and nearby treasure chests. After that, you return to Forbidden Deep to interact with Henry and the crab.
How to get King’s Fortune from the giant cat quest in Spirit Roots
This is the deep endgame-style secret: a giant cat hidden in the deepest Spirit Roots area. It is doable earlier if you have the right tube, but it is usually best tackled later because of the cash and task requirements.
Step 1: Equip the right tube for the deepest Spirit Roots
You will need at least the lost spirit tube, or stronger options like the bath tube or ruin tube, because the route drops into one of the deepest parts of the game.

Step 2: Navigate to the hidden cat area
In the deepest section, follow the path carefully so you do not lose your exit route.

When you arrive at a zone covered with sea plants, turn right.

Step 3: Grab the chest near the entrance
There is a treasure chest right in front of you when you reach the correct turn, so pick it up before you push deeper.

Step 4: Talk to the huge cat and review requirements
Inside, you will meet the giant glowing cat, and the quest has multiple requirements, including 100,000 cash and several fish-catching objectives.

Step 5: Finish the tasks and get King’s Fortune
Once completed, you receive the King’s Fortune artifact, which gives you a 10% cash bonus when selling items. If you are still building your bankroll, wait until you can spare the 100,000 without stalling your upgrades.

How to get the Ruined Lantern from the Lightkeeper in Angller Cave
This one becomes available through normal progression, but many players still miss how strong the reward is. You unlock access to Angller Cave via the Lost Captain quest chain, then finish the Lightkeeper tasks inside.
Step 1: Progress the Lost Captain questline
Find the Lost Captain deeper down past the scientist and Billy the storage area.

Then complete his quests until you get the key to open Angller Cave.

You typically need to be level 35+ to be in the right progression bracket for this route.
Step 2: Open Angller Cave and locate the Lightkeeper
Use the key to access Angller Cave, then head inside and look for the Lightkeeper NPC. This is also the location where you can buy the ruined gun and ruined tube.

Step 3: Accept the Lightkeeper tasks and complete them in the cave
The tasks revolve around catching fish found in Angller Cave, including angler fish and the king angler fish, plus other cave fish.
Step 4: Return to the Lightkeeper and claim Ruined Lantern
When you finish the full set of tasks and turn them in, the Lightkeeper rewards you with the Ruined Lantern artifact.

Step 5: Build your deep exploration loadout around it
Ruined Lantern gives massive stats: 33.3% oxygen, 3.3 speed, and 33.3 kg tube weight. When you pair it with Crab Claw, your oxygen becomes extremely high, which makes deep exploration much safer and more forgiving.
Secret artifact rewards and stats
| Artifact | How you get it | Stats you receive | Best use case |
|---|---|---|---|
| Crab Claw | Complete the crab quest after retrieving the scroll | 25% oxygen, 16% damage | Strong general artifact for deeper runs and combat |
| King’s Fortune | Complete the giant cat quest in deepest Spirit Roots | 10% cash when selling items | Long-term money boost; best done later |
| Ruined Lantern | Complete Lightkeeper quest inside Angller Cave | 33.3% oxygen, 3.3 speed, 33.3 kg tube weight | Best overall for deep exploration and carrying more |
How to plan the order so you do not waste time
If you are early-to-mid progression, focus on the crab scroll route first since it is straightforward and the reward helps everywhere. Save the King Cat quest until you have spare money, because paying 100,000 too early can slow your core upgrades. Aim for Ruined Lantern as soon as you are ready for the Lost Captain chain and Angller Cave access, because it is the single biggest quality-of-life upgrade for deep runs.
What to do after you claim the artifacts
Once you have Crab Claw plus Ruined Lantern, you can start planning longer deep dives with fewer forced resets, and you can carry more loot per trip. King’s Fortune is then a steady background boost that helps fund expensive upgrades as you continue grinding.
These three secret quest locations are some of the highest-value detours in Abyss: the crab scroll cave behind Grumpy Hank’s lair, the giant cat hidden deep in Spirit Roots, and the Lightkeeper questline inside Angller Cave. If you tackle them in a smart order, you will feel the power spike immediately, especially in oxygen-heavy deep exploration.