Mortal Shell 2 Tishina's Confessor Boss Guide
Quick answer: A named dungeon miniboss on the Nameless Captive route. If you are low, use the Traversal Gate, then commit. Reward is Confessor's Keepsake.
Official promotional screenshot: Steam / Cold Symmetry / Playstack
Location and route
Boss location: End of Slumwater Drain in Prisoners' Domain.
Inside the Prisoners' Domain gate region, follow Slumwater Drain to the end. Gamer Guides notes a nearby Traversal Gate if you need to refill before committing.
Preparation checklist
- Do not walk in empty after the drain trash.
Attacks and counters
| Attack | Tell / danger | Safe response |
|---|---|---|
| Drain-end melee | Community attack lists are thin | Treat unreadables as dodges; do not invent parry windows. |
Step-by-step fight plan
- Top off at the gate, fight, loot Keepsake, continue to Captives End.
Rewards, achievement, and what comes next
- Confessor's Keepsake and Gloom x5,664 (Game8).
More boss guides
- Magdalena, the Lady of the Woods
- The Lost Child
- The Nameless Captive
- Zmey, the Unbidden
- Droeg the Conqueror
- Hexapod
- Isaac, the Scholar Prince
- Orrem, the Discarded Golem / Orrem, the Reclaimed
- The Monolith
- Malborn Offspring
- Tar Golem
- Great Arbiter of Flesh
- The Wandering Shepherd
- The Warden
- Vellen, High Lord of Mammon
- Sester Secundus
- Gloombound Ritualist
- Tainted Vestige
- Vrannic, the Grand Illusionist
- Circle of the Grasping Root
- Grisha
- Vrago, Solikar Champion
- Bloodcursed Lithopod
- Broodshell Swarm
- Gloombound Legion
- Lucian, the Thirsting Knight
- Tarblighted Stoner
- Rabid Grisha Pack
- Pale Grisha
- Urrig, the Executioner
- Caged Grisha
- Strange Grisha
- Twin Sesters
- Stray Sesters
- Bor, the Deluded Monarch
- Sariel, the Endless
- Servants of the Scholar Prince
- Solnir, the Gloom Seeker
- Gloombound Wraith
- Starved Harridan
- Viletongue Batushka
- Subjugated Guardian
- Infested Miner
- Prophet of Profane Infinities
Evidence: The boss name and achievement wording are cross-checked against the official Steam achievement list. Location, attacks, rewards, and strategy are attributed community synthesis checked against this Game8 Prisoners' Domain boss table. Verified August 23, 2026; balance and behavior may change with patches.