
If you’re wondering how to open the two hidden Cultist Lair Doors in the Fisch Leviathan update, you’ve come to the right place, as we can help. These doors require a very particular combination of materials to unlock them, which can be a bit convoluted at first glance. For this, you can refer to the rest of the guide below.
How to Open Cultist Lair Door 1 (Hall of Whispers) in Fisch
Once you’re inside the Cultist Lair, you should find a rather large door blocking your way forward, standing directly in front of you, past the Guards. The key to unlocking the door is by completing a few steps in sequence:

- Firstly, fish for the Key of Whispers in the pool of water in front of the door. Make sure to use a Rod with a high Luck stat in order to hasten the process (such as the No-Life Rod and Free Spirit Rod). Once you have it, place the Key of Whispers on the yellow lock in the center.

- Next, you’ll want to grab a Sparkling Enchant Relic either by getting lucky with Chest Drops or purchasing it directly from Merlin's Shop on Sunstone Island. With that in hand, place it on the right side of the door, on a pedestal.

- The third and final piece is an Albino Moon Wood, which can be obtained by fishing within Snowcap Island (2600, 150, 2400). Place the twig on the left side of the entrance, on a pedestal.
The door should now automatically open, and the lift should move forward. Interact with it to enter the Hall of Whispers.
How to Open Cultist Lair Door 2 (Passage of Oaths) in Fisch
Much like the first Door, the doorway to the Passage of Oaths in Fisch requires you to submit a total of three items in a similar fashion. Keep in mind that you'll need to unlock the first door (that leads to the Hall of Whispers) in order to reach the Passage of Oaths:
- Fish for the Key of Oaths in the water pool nearby (right before the second door). Drop rates are quite low, so make sure to use a Rod with high luck stats (such as the Free Spirit Rod). With the item in hand, submit it while you interact with the big yellow lock.
- You’ll need some Darkened Ancient Wood for the pedestal on your right. You can head over to Sunstone Island (-932, 131, -1109) to grab some. Place it on the pedestal after you interact with it to proceed.
- A Shiny Enchant Relic is needed for the third and final piece of the puzzle. Grab an Enchant Relic the usual way (that is, by purchasing it directly from Merlin on Sunstone Island), and place it on the left pedestal.
Like the previous region, doing this will automatically unlock the door and lead you to an elevator. Interact with it in the Passage of Oaths.
How to Reach the Cultist Lair in Fisch

The Cultist Lair is located within Terrapin Island, on its leftmost edge. Climb up and walk until you find the Cultist Lair NPC and interact with him. He will prompt you with a task, which, once completed, will reward you with a map. If you want a more detailed instruction, make sure to check out our full guide on how to enter the Cultist Lair in Fisch.
Cultist Lair Door FAQs
The Key of Whispers can be found before you reach the Hall of Whispers. Simply fish for the key in the pond near the first door.
The Key of Oaths is located beyond the Hall of Whispers. Like the Key of Whispers, you'll have to fish it out of the nearby water body, present close to the second door.
The lever will only spawn during Foggy weather at Night. As such, you can choose to either wait or speed up time to meet the unlocking conditions.
For more on Fisch, check out Roblox Fisch Private Server Links (November 2025) on Pro Game Guides.