The Zealot’s Stone is a Combat Tarstone in Mortal Shell 2 that bolts a brand-new ending onto your light attack string. It is not sitting in a roadside chest. You have to find a dungeon entrance tucked into a cliff wall, clear it, and win a fight inside a memory before the game hands it over.
Quick answer: Clear the Besieged Ruins dungeon east of the High Lord’s Courtyard Beacon. Drop two levels down the cliff, follow the rock face to the cave entrance, ride the wooden elevator down, then touch the helmet on the pedestal and defeat the armored boss in the 849 PA – THE SCHISM OF MAMMON memory.
Route to the Besieged Ruins from Outskirts of Mammon
If you already have the High Lord’s Courtyard Beacon, skip straight to Step 5. Otherwise this is the overland chain that gets you there.



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Add to Google Preferences →Inside the Besieged Ruins: The helmet memory and the boss
The dungeon itself is short. The real gate is the memory sequence at the back of it.


Note: after the reward screen, you can backtrack through the same corridors and take the lift back up to the surface, then rest at the High Lord’s Courtyard Beacon to travel out.
How to confirm you have the Zealot’s Stone
Killing the boss triggers a NEW TARSTONE ACQUIRED banner naming the Zealot’s Stone, and the memory ends immediately afterward. Open the Tarstones tab in your inventory to check that the entry is there with its four upgrade tiers listed. Slot it into a compatible primary weapon and finish a light attack chain in combat; the extra finishing swing at the end of the string is the confirmation that it is actually equipped and working.
Zealot’s Stone effects and upgrade levels
The stone does not give you a flat stat bump. It appends a unique attack to the tail of your light combo, and every rank pushes more Resolve into that one attack.
| Level | Effect |
|---|---|
| 1 | Grants access to a special Light Combo Finisher |
| 2 | The light finisher generates +40% Resolve |
| 3 | The light finisher generates +70% Resolve |
| 4 | The light finisher generates +150% Resolve |
The Resolve gain is tied to landing that finisher specifically. Regular light hits earlier in the chain are unaffected, so the value only shows up when you actually complete the string.
Weapons that accept the Zealot’s Stone
This is a Combat Tarstone and it slots into a primary weapon. Six weapons list it as compatible:
- Black Needle
- Clockwork Scythe
- Great Martyr’s Blade
- Obsidian Hammer
- The Iconoclast
- Veteran’s Battle Axe
You can run two Combat Tarstones at once, so the Zealot’s Stone pairs with a second Combat stone rather than competing with your Support, Infusion, or Ability slots. It is the light-string counterpart to the Tyrant’s Stone.
Upgrading the Zealot’s Stone at the Tarforge
Ranks 2 through 4 are where the Resolve numbers live, and they are gated behind a quest item rather than currency alone.
Why players miss the Besieged Ruins entrance
Almost every failed run comes down to elevation. The dungeon door is below the High Lord’s Courtyard Beacon, not along the surface path leading away from it, so sweeping the courtyard level for a chest or an NPC turns up nothing. If you are standing anywhere you can still see the beacon, you are too high.
The second trap is the jump pad at the bottom. That platform makes the area read like a dead end you are supposed to bounce out of, when the cave you want is at ground level on the same tier, flush against the cliff face. Walk the wall before you use the pad.
Once it is slotted and upgraded, the Zealot’s Stone rewards a very specific rhythm. If you tend to open with a light chain and cut it short to reposition, you will rarely see the finisher land and the Resolve gain will feel absent. Commit to the full string and it becomes a reliable way to keep the Resolve bar topped up without leaning on heavy attacks or parries.






