Unlock and upgrade the four swords and topple The Guardian with our handy guide.
Now you want to interact with the red portal inside the once-locked container to summon the pack-a-punch machine.
Interact with the flap on the wooden door and it will open, revealing Gabriel Krafft.
With that dialogue done, you might crack on with the rest of the easter egg.
Then I found the ‘Eye’ fragment on the bunk beds.
Then to the right, over on the sofa, I found the ‘Four prongs’ fragment.
Here you could interact with six little potion bottles that feature roman numerals.
With that done, head back to the castle courtyard and purchase Melee Macchiato from the right rampart.
So in this order: top-left, bottom-left, top-right and bottom-right.
Its a massive ordeal, a quest-within-a-quest, and you could approach it in any order.
Now we need to find three lightning rods.
Interact with it to pick it up.
They look a bit like a spiked mace, if that helps.
Finally, head inside the castle, and down to the Dungeon where you spoke to Krafft.
Four special parasites emitting a golden glow should spawn when you do this.
Youll find a door with a lion door knocker.
Repeat the process until all four symbols are lit, then interact with the door.
Once inside, lets prepare for a second.
Were about to partake in a timed target challenge, so equip your assault rifle.
you gotta shoot the symbols in the descending order shown on the base of the stand and quickly.
Once thats done, the Lion Sword will transform into its upgraded version.
Head out to the castles foyer and ascend the stairs to find a dragon statue.
The first cauldron is on the way up to the cannon on the left hand side of the courtyard.
Once youve completed each run, the Dragon Sword will transform into its upgraded version.
Now you oughta head into the Alchemical Lab and look for an Antiquity.
If youre into horoscopes, now is your moment to shine.
The solution needs to be entered at the southmost point of the puzzle.
Because scorpios are water signs!
If youd rather not figure it out, check out thishandy website that automates the process from TroubleChute.
When thats done, itll move once more, next to the pool table on the mezzanine.
In some cases, youll also need to charge the item by performing a task after collecting it.
A light beam will be generated, linking to another crystal.
Sometimes you have to shoot a crystal a few times to get it to align with another crystal.
Eventually, the crystal will beam onto a bust, and generate the Paladins Brooch.
During the slide you oughta shoot a raven prop that appears on the right hand side.
Once you hit it, a raven will fly out of the slide and into the sky.
Quickly shoot it with your assault rifle, and itll drop the Ravens Talon.
Above the exit that faces towards the castle will be a horseshoe.
Shoot it down and pick it up.
Then you want to head to the Lion Cannon which you used to blow fire up the castles gates.
Climb into the mouth of the cannon and shoot yourself to the spawn area.
When you land on solid ground, look to the sky for a little storm cloud.
Head to the mini storms location and pick up the upgraded horseshoe on the ground.
Hopefully you brought one with you, and perhaps you may have got a lucky drop in the meantime.
Turn around and look up towards the castle and youll see a bonfire above the perk machine room.
Launch your molotov at the bonfire to set it alight.
Next, head to the Lion Cannon, and turn around and face the castle.
Throw a long range molotov to light the bonfire above the entrance.
Finally, head down to Speed Cola, then turn around to face the machine and the castle.
Above Speed Cola is the final bonfire.
Take care with this last bonfire, as when you set it off, a Doppelghast will spawn.
Kill the Doppelghast and theyll drop Ras Ankh, completing your set of Ritual Items.
Incantations replace your tactical slot and are powerful elemental abilities you might cast to get rid of zombies.
With that out of the way, we can close in on the boss fight.
Its time to put it to use.
Start traipsing around the map looking for the first Point of Power trap in your sequence.
The symbols allude to the swords - Dragon, Lion, Stag and Raven.
Jot the order of the sequence down, because its needed for the next step.
Youll know youve done it right when the statue performs a salute and turns gold.
Once all four statues are gold, theyll come together to reveal the Mystic Orb.
Now run outside of the castle and down the steps into the courtyard.
On the wall opposite the ammo box is another orb spot.
This challenge is fire-themed, so use the Dragon swords special attack, as well as the Fire Incantation.
The Napalm Burst ammo mod and molotov cocktails may help with this one, too.
Finally, run all the way to the spawn point.
Shock Charges and the Dead Wire ammo mod may help get this one over the line.
With all the challenges completed, you should see four motes of light swirling around the orb.
After a quick chat, pick up the Guardian Key on the table.
Its time to fight the boss.
The Guardian is a tremendously difficult boss fight, even for seasoned Call of Duty Zombies players.
And if youre playing solo, its doubly hard.
you’re gonna wanna break the armour with damage before you might hit its weak spots.
Keep moving around the arena, sliding away from the area-of-effect slams and dodging projectiles and homing attacks.
Fire shots when you find a spare moment to crack those armour plates and expose the weak spots.
Keep your wits about you as the circle gets smaller, and dont do anything rash.
Just wear The Guardian down slowly and dispose of the horde, grabbing precious armour plates when you might.
Best of luck completing the Citadelle Des Morts main quest easter egg!
