Kronorium

The Kronorium is an item referred to in Call of Duty: Black Ops III in several Zombies maps and plays a key role within multiple Call of Duty: Black Ops 4 Aether maps. This ancient book contains information regarding the universes, dimensions, the Summoning Key and the history of several creatures, artifacts and creations.
In the Call of Duty: Zombies comic, Victis (the TranZit crew) searches for it with the help of Primis Edward Richtofen, who has asked them to conduct said research. As seen in a cipher, Monty revealed to Maxis the location of the Kronorium, who then sent Richtofen to retrieve it. It was located in the Empty Earth in Base Zero, which was constructed by some unknown Maxis version, and is protected to allow access only to those who have a soul. 
In Revelations, it is found in The House in Samantha's room, where it is used to regain the Summoning Key and ultimately kill the Shadowman. It has been confirmed that the Kronorium holds the entire zombies timeline ranging from Dimension 63 all the way to Fractures.
In Blood of the Dead, it is revealed that due to the Cycle being broken, the pages of the Kronorium have changed - detailing the death of Edward Richtofen. As Primis fight their way out of the Alcatraz Pocket Dimension, a version of Richtofen who had already fought in The Great War manages to defeat the Warden of Alcatraz using the Elemental crystal of Fire. The Great War Richtofen then abandons Primis Richtofen to die, giving the Kronorium to Nikolai Belinski who still possessed his soul. After reading the Kronorium, Nikolai formulates his Grand Scheme to wipe the Apothicons, Element 115, and Doctor Monty from existence once and for all. The Kronorium leads Nikolai to recruit their older Ultimis counterparts and travel to Camp Edward, where they gather the Elemental Shard and defeat the Avogadro. Afterwards, Nikolai tasks Victis with gathering the Vril Vessel and Apothicon Blood to build the Agarthan Device, which he uses to plunge the Multiverse into the Dark Aether and create a new uncorrupted universe for Samantha Maxis and Eddie to travel to. The Kronorium's pages are erased alongside history during this, but the book itself remains intact within the Dark Aether.
== Excerpts ==
There are seven ciphers that reveal excerpts throughout Gorod Krovi; currently only five of the seven have been decoded:
The Zombies Timeline is "Excerpt 1023816121016" of the Kronorium, as seen on the bottom right corner of the page. It is signed by Dr. Monty in the top left corner of the page.
== Gallery ==
Kronorium Chronicles Drawing BO3.png|A drawing of the Kronorium as seen in the Zombies Chronicles timeline poster.
Zombies Chronicles timeline.jpg|The entire Zombies timeline as seen on one of the pages of the Kronorium.
Kronorium Trophy Room Der Eisendrache BO3.png|The Kronorium sitting in Der Eisendrache's Trophy Room.
Kronorium Teleporter Der Eisendrache BO3.png|The Kronorium sitting by Der Eisendrache's MPD.
Kronorium Time Travel Der Eisendrache BO3.png|The Kronorium sitting by Der Eisendrache's MPD when Primis travel back in time.
Kronorium BO4.png|Richtofen reading the Kronorium in the intro cinematic of Blood of the Dead.
PagesHaveChanged BOTD BO4.png|Richtofen reads the Kronorium.
Kronorium on Ground BO4.png
Nikolai Reads Kronorium BOTD BO4.png|Nikolai reading the Kronorium, formulating his Grand Scheme.
Kronorium Fades Away TagDerToten BO4.png|A page of the Kronorium detailing Richtofen's death during Blood of the Dead. After this, the pages fade away as history itself is erased.
== Trivia ==
*The four Apothicon symbols on the cover of the Kronorium are "Asturgwa" (Ritual), "Ujoth" (Zombie), "Astagua" (Servant) and "Shubnaneth" (Trap).
* Various books bearing the cover of the Kronorium can be found throughout Der Eisendrache.
* Upon confirmation for Zombies Chronicles Jason Blundell jokingly stated that, "The Kronorium is underneath Treyarch Offices".
* The Kronorium has a page that has the entirety of the zombies timeline, which can be found here.
*The name "Kronorium" originates from the Greek word "Khronos", meaning time, with the "rium" suffix originating from "arium" (a Latin suffix which denotes a location/receptacle). This is a fairly accurate descriptor, with the Kronorium itself being a receptacle where the history of time can be found.
*The Kronorium seems to be based off of the , a fictional grimoire and similar story-element in the extended works of horror writer .
Category:Call of Duty: Black Ops III Zombies
Category:Call of Duty: Black Ops 4 Zombies