Collect the Emblems and Open the Hidden Chamber
Complete The Oathbound in Valor Mortis by collecting the seven Guardsmen’s emblems, using the Mysterious Stone Slab at the marked wall near Fortress > Courtyard, and reading the note inside. The chamber contains an Empty Ferrofluid Flask and Quintessential Blade Material, while completing the quest unlocks We Wear the Same Colours.
Where to Start and Which Abilities to Bring
A straightforward starting point is Lucien Lafontaine near Valley of Ashes > Demolished Path during Chapter 2. Defeating him starts the quest and gives you his emblem and a Mysterious Stone Pyramid. Once fast travel becomes available, return to Onslaught Arch for Valen Duroc.
Some routes require later abilities. Etienne’s approach needs grappling and Nephtoglobin platforms, Jean Pierre’s mine route uses Stasis, and Adrien’s poisonous approach requires Shield Transmutation. Shield is obtained through story progression at University > Main Hall, at the top of the stairs in the large room beyond the chandelier crossing.
Finish the quest before climbing the Fortress’s High Tower if you want its rewards before the stretch without fast travel. If you have already moved on, you can return for remaining Guardsmen after finishing that section of the story.
Emblems and Starting Lanterns
| Emblem | Starting Lantern |
|---|---|
| Lucien Lafontaine’s Emblem | Valley of Ashes > Demolished Path |
| Valen Duroc’s Emblem | The Battlefield > Onslaught Arch |
| Jean Pierre Polnaire’s Emblem | Caverns > Old Mine |
| Etienne Vauclair’s Emblem | Fallen Village > Marketplace |
| Severin Susse’s Emblem | Cursed Hollow > Deep Water |
| Adrien Cassell’s Emblem | City of Orphans > Shamble Street |
| Bastien Beaufort’s Emblem | Fortress > Courtyard |
Start With Lucien Lafontaine
- From the kicked-down ladder near Demolished Path, follow the trail back down the plague vines until you are behind the group of three enemies.
- Take the path on the left behind that group to reach the Guardsman.
- Defeat him to start The Oathbound and obtain Lucien Lafontaine’s Emblem and a Mysterious Stone Pyramid.
- Open the chest behind where he stood to collect the Perfectionism Amber.
Return to Onslaught Arch for Valen Duroc
- Fast travel back to The Battlefield > Onslaught Arch once the travel menu is available.
- Follow the cliffs behind the Lantern, continuing past the camp until you reach the fork with enemies.
- Shoot the red growth on the wall at the left fork with your Pistol to open the approach.
- Defeat the Eternal Guardian beyond the wall to obtain Valen Duroc’s Emblem and a Mysterious Stone Pyramid.
- Open the chest behind the Guardian’s position for the Duellist’s Focus Amber.
Reach Jean Pierre Polnaire Above the Old Mine
- From Caverns > Old Mine, use the box hanging from the crane to cross to the opposite platforms.
- Climb the ladder on the other side to reach the higher platform.
- Use the box to reach the top platform and the path leading away from the machinery.
- Follow that path to its end to find the Eternal Guardian inside a cave.
- Defeat the Guardian to receive Jean Pierre Polnaire’s Emblem and a Mysterious Stone Pyramid.
- Open the chest behind his position to collect another Perfectionism Amber.
Revisit the Marketplace for Etienne Vauclair
- Return to Fallen Village > Marketplace after unlocking grappling and the ability to use Nephtoglobin platforms.
- Follow the route backward through the carriage, taking the left branch at the crossroads toward the Neptho-structures.
- Follow the newly accessible path to its end, where the Eternal Guardsman waits in a cave.
- Defeat him to obtain Etienne Vauclair’s Emblem and a Mysterious Stone Pyramid.
- Loot the chest for a Legendary Catalyst Clot and Pure Transmutation Material before leaving.
Find Severin Susse on the Right Island
- From Cursed Hollow > Deep Water, follow the long stretch before the church to the circular area with a central hay bale and a patrolling cannon enemy.
- Take the right island beyond the shortcut building, using the explosive barrels on the left island as your landmark.
- Follow the island around the hay to find the Guardsman beside a building.
- Defeat him to receive Severin Susse’s Emblem and a Mysterious Stone Pyramid.
- Open the chest behind his position for the Life Diverted Amber.
Cross the Poison to Reach Adrien Cassell
- From City of Orphans > Shamble Street, follow the shortcut through the large gate toward the river, then left to the ramp patrolled by two tall enemies.
- Cross the poison area on the left at the bottom of the ramp while protected by Shield Transmutation.
- Climb the crates into the opening in the house wall to reach the blocked passage.
- Shoot the red growth inside to clear the route toward the Guardsman.
- Defeat the Guardsman at the end of the route for Adrien Cassell’s Emblem and a Mysterious Stone Pyramid.
Collect Bastien Beaufort’s Emblem in the Fortress
- From Fortress > Courtyard, follow the hallway beneath the hanging flag into the large room.
- Take the left branch through the room to reach the monster Eternal Guardsman at the end.
- Defeat the monster Guardsman to make the body accessible.
- Inspect the body to obtain Bastien Beaufort’s Emblem and a Mysterious Stone Pyramid.
Use Parries Against the Guardsmen
Parry the Guardsmen’s attacks to break their Posture and create openings for Critical Attacks. If a Guardsman breaks a vial and transforms, favor melee attacks: firearms and explosions deal only half their normal damage against the transformed enemy.
Open the Oathbound Wall and Claim the Rewards
Collecting all the emblems grants the Mysterious Stone Slab. Bring it back to Fortress > Courtyard to finish the quest.
- Return to the hall where you fought the monster Guardsman and follow the opposite direction to the Oathbound symbol on the left wall.
- Use the Mysterious Stone Slab at the marked wall to open the hidden chamber.
- Pick up the note on the table to complete The Oathbound and unlock We Wear the Same Colours.
- Open the chest to the left of the table to collect the Empty Ferrofluid Flask.
- Open the chest to the right of the table to collect the Quintessential Blade Material.
Check the Body and Final Note if Progress Stops
If you are missing the slab, compare your emblems against the Lantern table above. Check Bastien’s body in particular: his quest items require an inspection after the fight. If the chamber is open but the quest remains active, pick up the note on the table to complete it.