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How to Get Infested Stone and Effects | Mortal Shell 2

Last Updated: August 24, 2026 at 1:38 PM
Table of Contents

Infested Stone Overview

Infested Stone
Infested Stone
Tarstone TypeAbility

How to Get Infested Stone

AreaMap
area
map
LocationDeserted Slums
How to GetBuy from The Collector for 1500 Coins.

Infested Stone Effect

LevelEffect
1Consume 60 resolve to fire a clinging projectile that triggers a massive explosion after a brief delay
2The clinging projectile deals 100 damage upon exploding
3The clinging projectile draws the aggression of all nearby enemies
4The clinging projectile scatters 3 other clinging projectiles upon exploding

How to Upgrade Tarstones

Franz

Every Tarstone can level up to 4 times, growing stronger or shifting into a new effect. To upgrade, give Franz the Etching Needle: Allows players to enhance their Tarstones when they give it to Franz at the Marrow Keep. Quest Item.

Level 2 upgrades cost coins, but you'll also need enough experience first. Just equip a Tarstone and rack up kills to earn EXP toward its next level.

Where to Find the Etching Needle

Find the Etching Needle inside a chest just before the boss fight against the Magdalena, Lady of the Woods. Past the Tarblighted Shepherd where you meet Ruk, turn right to spot it.

Related Guides

List of Tarstones

Tarstones

Guides by Category

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