The Key of Whispers is an exotic item you need to find to unlock doors in Fisch. You’ll be able to obtain this key at the Cultist Lair. The real challenge, however, is finding this key in the lair. Here’s how to go about doing this.
How to get Key of Whispers in Fisch

You can get the Key of Whispers in Fisch by fishing during the daytime in the Cultist Lair area. Do note that you’ll find this key if you fish during the daytime only. That’s the only requirement to get this key, as its drop rate is not affected by the type of bait, weather, or season.
When you catch this key, you’ll hear the following catching quips: “I caught a key!” or “Woah, a key!!” Following that, you’ll find the Key of Whispers in your stash. If you are wondering where to use this key, we’ve got you covered.
Uses of Key of Whispers in Fisch

You can use the Key of Whispers in Fisch to unlock the door present inside the Cultist Lair. The Bestiary Entry of the Key of Whispers reads, “This is the Key that leads to the gates of the Hall of Whispers…”
That means by unlocking the door in the Cultist Lair using the Key of Whispers, you’ll be able to enter the Hall of Whispers. And the process of entering is a fairly simple one. You just need to go to the door and place your Key of Whispers on the lock present.
Next, you need to place a Sparkling Enchant Relic on the right pillar and an Albino Moon Wood on the left pillar next to the door. By doing so, you’ll be able to open the door.
For more Fisch guides, do check out How To Catch Ashclaw and How To Unlock Underground Music Venue.

