Mortal Shell II Dungeon Walkthrough: Routes and Loot

The direct answer

For a fully documented Mortal Shell II dungeon walkthrough, use the Holding Cells route in the collected video source. Its description identifies the path to the dungeon, the dungeon start, the plate that lifts the gate, the Feeding Room Key, the Rabid Grisha Pack boss, and the exit into Citadel of Penance. Those are the concrete checkpoints available in the research, so this page focuses on Holding Cells rather than pretending that every dungeon has a verified step list.

The broader walkthrough source is a hub that lists regions and collectible coverage. It names the Prologue, Widow’s Overlook, Mushroom Village, Sunken Village, Flooded Village, Blackridge Cliffs, Gloomshade Grove, Holding Cells, and Citadel of Penance as the first documented sequence. Later entries such as Ruins of Nochte and Desolate Peak are marked as coming soon in the captured material, so they are not expanded here.

Reach Holding Cells

The Holding Cells video begins with a chapter called “Path to Dungeon.” The source does not reproduce a written landmark-by-landmark route in the captured text, so do not rely on a made-up turn order or an unverified Beacon name. Use the video’s first chapter for the visual approach, then treat the “Dungeon Start” chapter as the point where the interior route begins.

The broader walkthrough says Holding Cells bridges Blackridge Cliffs and Gloomshade Grove. It also says the dungeon can be accessed from either side, while its own walkthrough chooses the Blackridge side and continues all the way through. That gives you a useful orientation rule: if you arrive from the other region, you may still be at the correct dungeon, but the documented guide’s reference direction is Blackridge to Gloomshade.

Start the interior route

The video marks “Dungeon Start” at a separate checkpoint after the approach. From there, the first named objective is a plate used to lift a gate. The material does not identify the plate’s exact room, the enemy group around it, or whether the interaction is timed, so the written instruction stops at the confirmed action rather than inventing a puzzle solution.

After the gate is lifted, the next named collectible is the Feeding Room Key. This is the key item the source calls out before the boss chapter. Keep the key in mind as the route’s progress marker, because it is more reliable than counting rooms or assuming every side corridor contains a required item.

The Feeding Room Key checkpoint

The Holding Cells description says the walkthrough covers all items, including key items, the boss fight, and the exit. Its chapter list specifically labels the Feeding Room Key, so that item is part of the intended route rather than an unrelated optional pickup. The collected material does not state what door the key opens, its location inside the dungeon, or whether it can be missed.

That missing detail is important for a fact-checked page. Use the video chapter to find the key visually, but do not publish a named locked door or a reward that the source does not name. The source supports the key’s presence and sequence, not a larger quest chain.

Defeat the Rabid Grisha Pack

The next major checkpoint is the Rabid Grisha Pack, explicitly labeled as the boss in the collected chapter list. The research does not include a combat transcript or a reliable moveset, so this page does not invent attack phases, damage values, recommended Shells, or a weakness. The safe route advice is to treat the fight as the dungeon’s boss checkpoint and use the combat systems you already know rather than trusting unsupported “best build” claims.

The broader walkthrough also warns that the Holding Cells boss is tricky. That is a source-backed difficulty note, not a numerical rating. It explains why a player searching for a walkthrough may want the full route instead of rushing directly to the arena: the key and gate steps are part of the runback context.

Exit to Citadel of Penance

After the Rabid Grisha Pack chapter, the video marks “Dungeon Exit [Citadel of Penance].” The broader walkthrough describes Holding Cells as a bridge between the Blackridge Cliffs and Gloomshade Grove, while the video labels its exit specifically toward Citadel of Penance. Keep both facts because they describe different map relationships rather than forcing one into the other.

The source does not claim that defeating the boss automatically cleanses a Beacon, unlocks a Shell, or grants a named weapon. Those are common Soulslike assumptions, not facts contained in this material. The confirmed endpoint for this page is the exit route into Citadel of Penance.

The larger walkthrough order

The collected hub organizes the early route as Prologue, Widow’s Overlook, Mushroom Village, Sunken Village, Flooded Village, Blackridge Cliffs, Gloomshade Grove, Holding Cells, and Citadel of Penance. It describes the Prologue as the introduction to the Harbinger and first Shell, Harros, and describes Mushroom Village as a location with quests, enemies, secrets, and a first legacy dungeon. It also identifies Blackridge Cliffs as a connector region with a Shell and a primary weapon, while Gloomshade Grove leads toward Citadel of Penance.

These region descriptions are useful for choosing the next page, but they are not a substitute for the detailed Holding Cells route. The source marks several later areas as coming soon, so this guide does not turn their names into fabricated walkthrough steps. Use the linked hub for the broader progression context and the Holding Cells video for the concrete checkpoints.

Sources used

• Holding Cells Dungeon Walkthrough
• Mortal Shell 2 walkthrough: All regions and collectibles