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Citadelle Des Morts launches the next chapter in theBlack Ops 6Zombies storyline, taking our band of characters from the horrifying Terminus island to a European castle in Avalon. While players may find themselvesprogressing through the main Easter Egg questduring their playthrough, there are a few side secrets that players can also uncover.
Such Easter Eggs includethe ability to summon a Guardian Knightto aid in the fight against the undead, or secure some extra Essence through making an offer at a wishing well. Though each secret offers a tangible reward, theCitadelle Des Morts Music Easter Eggrewards players with an awesome soundtrack to listen to as they slay hordes of zombies.

How To Complete The Citadel Des Morts Music Easter Egg
Following the trend of both Liberty Fallsand Terminus, the Citadel Des Morts Music Easter Egg can be triggered once playersfind and interact with three Mr. Peeks Headsets.Each headset is hidden away in different corners of the map, which are likely to fly under most players' radars. Here is a quick breakdown of where to find each headset:
Tavern Mr. Peeks Headset Location
The first Mr. Peeks Headset can befound within the Tavern on the north side of spawn.If players head inside, they’ll find it sitting atop a table just to the left of the main entrance. Be sure to interact with the headset before moving on to the next location.
Courtyard Mr. Peeks Headset Location
The next Mr. Peeks Headset can be found over on theeast side of the Courtyard, just beyond the barrieraccessible from Speed-Cola.If players progress past this barrier and take a right, they willfind the headset sitting along a brick wall.Be sure to interact with this headset and head on over to the next location upon hearing Mr. Peeks laugh.
Undercroft Mr. Peeks Headset Location
The final Mr. Peeks Headset can befoundin the Undercroft, accessible from the Oubliette Room, the same areawhere Pack-a-Punch can be activated.Players entering the Undercroft can take a right andfind a red couchsitting in the area. The Mr. Peeks Headset is just to the left of this couch. Interacting with this headset will complete the final step of the Easter Egg, triggeringSlavefeaturing Vicky Psarakisto begin playing.
Slavewas written by Kevin Sherwood, who also provided the guitar work alongside Joey Doherty (who also produced and mixed the song). Jacob Umansky provided the bass, with Nathan Bulla on drums and Tyler Smyth on mastering.
