To complete the Citadelle des Morts main Easter Egg in Call of Duty: Black Ops 6, unlock Pack-a-Punch, build and upgrade the four Bastard Swords, solve the match-specific wall and statue clues, charge the Mystic Orb at four elemental stations, then take the Guardian Key to the Town Square statue. The symbols and statue order change by match, so record the clues revealed in your game instead of copying a fixed sequence.
What to prepare before starting
Unlock Pack-a-Punch first. The quest’s main puzzle chain calls for four upgraded Bastard Swords, their matching Incantations, and Melee Macchiato. You can work on the swords in any order; a solo player can return a sword to its statue to swap it for another. Call of Duty’s official map guide covers early map flow and Caliburn’s fire step, while GameSpot’s December 9, 2024 guide confirms the main quest progression and solo sword-swapping approach.
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| Sword | Element | Related Incantation |
|---|---|---|
| Caliburn | Fire | Fire |
| Durendal | Lightning | Electric |
| Balmung | Shadow (also called Void) | Shadow |
| Solais | Light | Light |
A helmeted zombie can drop a Stamp used to claim a sword from a Dining Hall knight statue. One walkthrough recommends waiting until round 10 for that step, but round behavior may change with updates. Call of Duty’s guide recommends reaching the first Pack-a-Punch before finishing round 10 as a pacing tip, not as a guaranteed quest trigger.
For Caliburn, Call of Duty describes carrying three Aether fires from braziers back to the dragon statue. Carrying fire damages you; melee kills restore some health while you have it.
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Speak to Krafft and find the Torn Pages
Talk to Gabriel Krafft through the Dungeon cell door, then collect the four Torn Pages in or near the Sitting Rooms. These pages are needed to identify the rune-circle traps.
Open the Undercroft wall and record its clues
- Equip Melee Macchiato and punch the damaged wall section in the Undercroft to reveal the puzzle wall.
- Go to the Tavern and interact with its six numbered bottles. Record the symbol associated with each Roman numeral.
- Return to the wall and shoot the symbols in the bottle order. The symbols’ positions scramble after shots, so follow your notes rather than their current positions.
- Place the four Torn Pages in the revealed book. Note the page symbols and the order they give for the Points of Power traps.
The bottle and page clues are specific to your match. The two walkthroughs from GameSpot and CODZombie describe the method; use the values your own game displays.
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Charge the four rune-circle traps
Activate the four Points of Power traps indicated by the book pages and kill zombies inside each circle to charge it. CODZombie’s July 15, 2026 walkthrough estimates about ten kills per circle; treat that as an approximate guide, not a fixed count that is guaranteed across patches. Follow the page order and verify each trap completes before moving on.
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Perform the knight statue ritual
Read the animal-symbol clue on the stairs between the Undercroft and Sitting Rooms to get the statue order for your match. Do not use a sequence from another player’s run.
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- For the first animal symbol, equip the matching elemental sword and Incantation.
- Use that Incantation on its corresponding knight in the Dining Hall.
- Face the glowing statue and trigger a weapon inspection.
- Repeat for each animal in the order shown by your clue.
The animal-to-element associations reported by GameSpot and CODZombie are Raven = Shadow/Void, Lion = Light, Stag = Lightning/Storm, and Dragon = Fire. Completing all four statues spawns the Mystic Orb.
Charge the Mystic Orb at the four elemental stations
Carry the orb to each station and meet its elemental requirement. The station and eligible damage methods below are described in CODZombie’s guide; specific damage interactions can change with patches.
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| Element | Station | Ways to charge it |
|---|---|---|
| Light | Dining Hall | Kill with Light damage or run through the Light Orbs that appear. The guide says orb pickups count toward the challenge. |
| Fire | Courtyard | Use fire damage from Caliburn, the Fire Incantation, Napalm Burst, Molotovs, or another supported fire source. |
| Electric | Town Square | Use electric damage from Durendal, its Incantation, Dead Wire, or Shock Charges. |
| Shadow | Undercroft | Use Shadow damage from Balmung, the Dark Incantation, Shadow Rift, or Kazimir devices. |
Once charged, return to the animal-symbol wall and place the orb on its pedestal. This reveals the Owl, also called the Secret Study.
Take the Guardian Key to the Town Square statue
Collect the Guardian Key from the revealed area and place it in the slot on the Town Square statue to begin the arena encounter. During the fight, break the seal on the Guardian’s back, then shoot its rotating weak points when they are exposed. The arena floor shrinks over time, and Incantation recharges appear during the encounter.
A bullet weapon for critical points and Solais for armor recovery are suggestions in a separate walkthrough, not required loadout rules. The quest is reported as playable solo or with a squad of up to four; GameSpot notes that one player can hold only one sword at a time and can swap by returning it to the matching statue.
Plan the quest for solo or squad play
| Approach | Useful for | Trade-off |
|---|---|---|
| Solo | Players who want to manage all clues and steps themselves. | You must return swords to their statues to swap, and keep careful notes of each match-specific clue. |
| Squad | Players who can split sword and Incantation work or handle parallel tasks. | Coordinate the recorded bottle, page, and statue clues so everyone follows the same match-specific sequence. |
The four swords can be completed in any order and can be built as needed rather than all at the outset. CODZombie estimates roughly 120 minutes for the quest, but that is the guide’s run-time estimate, not a published game statistic. Quest interactions and which damage sources count may shift with patches; if a step does not trigger, check current in-game behavior rather than assuming an old sequence or damage interaction still applies.
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