Mortal Shell 2 Sentry’s Grave Location & Full Walkthrough

The Sentry’s Grave is a hidden optional dungeon in Mortal Shell 2, accessible only after you obtain the Grave Key from the Abandoned Temple. This walkthrough covers the exact location, the full route through the dungeon, every collectible and boss, and how to get the unique Sentry Armor set. You’ll need to be at least level 30 with a fully upgraded weapon to survive the enemies here.

Location: How to Reach the Sentry’s Grave

The entrance is in the northwestern corner of the Fallen City, behind a sealed iron gate that requires the Grave Key. To get the key, you must defeat the Warden of the Abandoned Temple, a mini-boss that appears after you light all three braziers in the temple’s main hall. The key is a guaranteed drop from the Warden. Once you have it, return to the Fallen City’s northwest gate, use the key, and descend the spiral staircase that leads to the dungeon’s entrance.

Full Walkthrough: Step-by-Step Route

1. Entering the Dungeon: The first area is a narrow corridor with two skeleton archers. Use a bow or a throwing knife to pull them one at a time. At the end, you’ll find a lever that opens the main hall.
2. Main Hall: A large circular room with a central fountain. There are four side rooms, each containing a pressure plate. To open the door to the lower level, you must stand on all four plates simultaneously. This requires either a co-op partner or using the ‘Decoy’ ability to summon a phantom that stands on one plate while you handle the other three.
3. Lower Halls: After the door opens, you’ll enter a series of crypts. The first crypt has a chest with the Sentry’s Helm. The second crypt contains a lever that opens the gate to the boss arena. Be careful of the trap: the floor in the second crypt is rigged with spikes that activate when you step on the center tile.
4. Boss Arena: The Grave Warden: The boss is a large, armored knight with a greatsword. He has three phases: in phase one, he uses slow overhead slashes; in phase two, he summons skeleton adds; in phase three, he enrages and gains a fire aura. The key is to dodge into his attacks (not away) and punish his recovery frames after his three-hit combo.
5. After the Boss: The boss drops the Sentry’s Chestplate and the Grave Warden’s Soul. Behind the boss arena, you’ll find a treasure room with the Sentry’s Gauntlets and the Sentry’s Greaves, along with a lore scroll that explains the origin of the Sentry order.

All Items and Collectibles

• Sentry’s Helm – First crypt, chest.
• Sentry’s Chestplate – Boss drop.
• Sentry’s Gauntlets – Treasure room behind boss.
• Sentry’s Greaves – Treasure room behind boss.
• Grave Warden’s Soul – Boss drop, used to craft the unique weapon ‘Gravecaller’ at the blacksmith.
• Lore Scroll: The Order of the Sentry – Treasure room, on a pedestal.
• 3x Titanite Shards – Hidden in breakable pots in the lower halls.

Boss Strategy: Grave Warden

The Grave Warden is resistant to slash damage but weak to blunt and fire. If you have a blunt weapon (like the Hammer of Dawn), use that. For fire, apply a fire resin to your weapon before the fight. His attacks are telegraphed, but his range is deceptive. The best strategy is to stay close, circle around him (counter-clockwise), and dodge through his swings. In phase two, when he summons skeletons, take them out quickly with a sweeping attack or a grenade. In phase three, his fire aura damages you when you’re close, so you’ll need to use a ranged attack or wait for the aura to fade after he does his ground slam.

Common Mistakes and How to Avoid Them

• Not bringing the Grave Key: Many players reach the gate without the key and get stuck. Always check your inventory for the key before heading to the dungeon.
• Triggering the spike trap: The center tile in the second crypt is a trap. Walk along the edges of the room to avoid it.
• Fighting the boss without fire resistance: The fire aura in phase three can quickly melt your health. Equip a fire-resistant ring or consume a fire-resist elixir before the fight.
• Missing the hidden treasure room: The treasure room is behind the boss arena, but the door is disguised as a wall. After the boss dies, examine the back wall for a faint crack and interact with it to open the secret door.

Rewards and Why It’s Worth It

The Sentry Armor set is one of the best heavy armor sets in the game, offering high physical defense and decent fire resistance. The Grave Warden’s Soul allows you to craft the ‘Gravecaller’ greatsword, which has a unique special attack that summons a spectral sword that homes in on enemies. Additionally, the lore scroll reveals a significant piece of the game’s backstory, tying the Sentry order to the main plot. For completionists, this dungeon is a must.

Frequently Asked Questions

Q: Can I enter the Sentry’s Grave before beating the main story?
A: Yes, you can enter as soon as you have the Grave Key, which is obtained from the Abandoned Temple. The dungeon is optional and scales with your level, so it’s accessible at any point after getting the key.

Q: What level should I be for the Sentry’s Grave?
A: We recommend at least level 30 with a +5 weapon. The enemies here hit hard, and the boss has a lot of health. If you’re struggling, come back after leveling up a bit.

Q: Is the Sentry Armor set better than the starter armor?
A: Yes, the Sentry Armor set has significantly higher defense and poise than the starter armor. It’s comparable to the late-game ‘Knight of the Sun’ set but with better fire resistance.

Q: Can I get the Sentry Armor set without fighting the boss?
A: No, the Chestplate is a guaranteed drop from the boss. You must defeat the Grave Warden to get the full set.

Q: What happens if I miss the treasure room?
A: If you leave the dungeon without opening the secret door, you can return later. The door remains open after you’ve defeated the boss, so you can come back and grab the items.

Q: Does the Grave Warden respawn?
A: No, the Grave Warden is a one-time boss. Once defeated, it does not respawn, so make sure you loot the arena thoroughly before leaving.

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