Mortal Shell 2 Hall of Murmurs Walkthrough & Secrets Guide
Updated August 24, 2026 · Checked for the current launch build
Official promotional screenshot: Steam / Cold Symmetry / Playstack
Location and preparation
Complete route
- Travel to Castigator's Keep Beacon in the Outskirts of Mammon.
- Head southwest past the central courtyard and look for a set of stairs descending into the stone ground.
- Pull the lever to call the elevator, then ride it down into the underground canyon.
- Defeat the shielded brigands and minions guarding outside the wooden shack.
- Before opening the shack door, inspect the right canyon wall: hit the white-marked illusory wall to reveal ~700 bonus Coins.
- Smash the wooden door to enter the fireplace room. Grab the 500-Coin pouch on the caged box to the left and 250 Coins behind it (750 Coins total).
- Approach the kneeling figure by the fireplace and pick up the glowing Laterite upgrade ore.
- The figure transforms into a hostile Foul Knight (long neck and tentacle arms). Defeat it to earn a large Gloom payout and complete the dungeon.
Puzzle and stuck-point decoder
| What is stopping you | What to do | How to confirm it worked |
|---|---|---|
| The canyon seems to end at a small shack | Strike the right-side canyon wall marked with faint white glyphs | An illusory wall shatters, exposing ~700 hidden Coins |
| The praying figure at the fireplace is non-responsive | Loot the Laterite ore directly in front of the fire | Dark smoke erupts and awakens the figure as a Foul Knight |
| Are there secret audio or lute mechanics? | Exhaust all testing (Lute, Sheephead, Night Mode) | Confirmed by GameRant: no secondary sound puzzles exist; 750 Coins + Laterite + Foul Knight Gloom is the full clear |
Loot checklist
| Reward | Where it is | Why it matters |
|---|---|---|
| 750 Coins (500 + 250 pouches) | Caged box left of the shack doorway | Vendor currency for Merrick and weapon upgrades |
| ~700 Bonus Coins | Hidden behind the right illusory wall | Extra vendor and Tarforge spending gold |
| Laterite | Fireplace hearth pickup | Tarforge weapon upgrade material (+6 to +10) |
| Foul Knight Gloom Drop | Defeat the transformed Foul Knight | Character leveling Gloom at Beacons |
Before you leave
- The praying figure by the hearth is harmless until you touch the Laterite or attack it. Prepare your buffs before picking up the ore.
- Do not waste hours hitting walls for hidden 'murmur' sound cues. Community datamines and GameRant testing confirm there are no sound puzzles.
- Ride the elevator back to the surface after the Foul Knight dies to return to Castigator's Keep.
Sources
Related guides
All dungeon locations · Interactive map checklist · Key locations
Frequently asked questions
Where is Hall of Murmurs in Mortal Shell 2?
It is located in the Outskirts of Mammon beneath Castigator's Keep. Head southwest of the Castigator's Keep Beacon, find the stairs in the courtyard, and pull the lever for the elevator.
Does Hall of Murmurs have any hidden secrets or sound puzzles?
No. Despite its mysterious name, extensive community testing (including Night Mode, Troubadour's Lute tracks, and Sheephead Totem) confirms there are no hidden rooms or audio puzzles beyond the right-wall illusory coin cache.
What awakens the enemy in the Hall of Murmurs fireplace?
Picking up the Laterite ore from the fireplace hearth (or directly hitting the praying figure) triggers dark smoke that transforms the NPC into a hostile Foul Knight.
What loot is inside Hall of Murmurs?
The dungeon contains 750 Coins inside the shack, ~700 Coins behind the illusory wall, one Laterite weapon upgrade material, and a substantial Gloom reward from the Foul Knight.