Gravemind

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For the Halo 2 level, see Gravemind (level). For the music, see Gravemind (music).

Template:Flood Species Infobox Template:Article Quote A Gravemind (Inferi sententia, meaning "Thinking Dead"), formally known as a compound intelligence, is a Flood form that serves as the controlling consciousness of the entire Flood species. A Gravemind manifests as a near-omniscient intelligence existing throughout all Flood forms, with a huge body composed of Flood biomass serving as its central "brain."

Life cycle

A Gravemind originates as a proto-Gravemind -- a Flood form created by merging the bodies and biomass of numerous sentient life forms, as well as redundant Flood forms. After a proto-Gravemind has been created, nearby combat forms will continue to supply it with fresh bodies, allowing it to accumulate mass, increase in size, and gain more memories and intelligence from consumed hosts. Eventually, the Proto-Gravemind reaches a certain "critical mass" and becomes self-aware - a Gravemind. This critical mass tends to be in the thousands, if using human-sized bodies as a measuring unit.

The Gravemind and its subordinate Flood forms will continue to accumulate bodies. Eventually, when the Flood infection has become too large for even the Gravemind to control — or when all life in the galaxy has been consumed — the Flood infection will reach the Intergalactic Stage. At this point, the Flood will use all resources that it has at its disposal to leave the galaxy, with the intent to create a new Gravemind elsewhere.

Description

The first known Gravemind, known as the Timeless One or "the Captive" by Forerunners, bore little resemblance to its later incarnation. It took the form of a large, multi-limbed, humanoid Flood form. It is unclear as to whether this entity was the intelligence of the Gravemind inhabiting an infected Precursor, if it was a Flood form composed of many hosts merged together, or if it was simply a "Pure" Flood form created to serve as the Gravemind's body.

The Gravemind encountered during the Human-Covenant War was a massive Flood form, with an amorphous body composed of numerous tentacles. One of the larger tentacles ended in a massive "mouth" composed of fleshy, leaf-like jaws; This organ allows the Gravemind to vocalize. During its time beneath Installation 05's Library, some of its tentacles grew to be miles long and stretched throughout the Installation.

File:GravemindCloseup.png

Installation 05's Gravemind with Arbiter Thel 'Vadamee and SPARTAN John-117.

The Gravemind, like the Proto-Gravemind from which it formed, is made of countless bodies and corpses; The Art of Halo states that Gravemind is "literally built from the bodies of its enemies and its own fallen warriors reassembled into a massive, tentacle, and intelligent entity." Gravemind references this fact often, often calling his current whereabouts an empty grave or burial mound. Even its name, "Gravemind", references this: it is the mind of the grave. The consciousness of the Gravemind is formed from the accumulated intelligence and memories of every Flood host ever consumed.

The Gravemind is the controlling intelligence behind the parasitic Flood species. When a creature is assimilated into the Flood, its knowledge is transferred directly to the Gravemind, and the remainder of its mind is destroyed. In addition, it appears each Gravemind also retains the memories and knowledge of previous Graveminds. This has made the Gravemind virtually omniscient, and ensures that should the Gravemind be destroyed, its consciousness will never truly die as long as some flood forms are left. In an archived conversation with the Forerunner AI known as Mendicant Bias, he compared himself to the AI, describing it as "a single intelligence inhabiting multiple instances" and calling himself "a compound [intelligence] consisting of a thousand billion coordinated minds inhabiting as many bodies as circumstances require". While it is not known how the Gravemind is able to communicate with subordinate Flood forms across the galaxy, his self-comparison to a computer network implies that similar techniques may be used, with each Flood form possibly acting as a networking node and redistributing the Gravemind's commands to other forms.

It is widely believed that the Gravemind uses some form of telepathy to command its disparate Flood components. This theory is reinforced by the Gravemind's ability to communicate with John-117 during the events of Halo 3 - he appears to speak directly to John's mind. However, this may have been an example of the Gravemind somehow contacting John's neural interface.

Like all Flood, the Gravemind itself is genderless; however, most characters have interpreted its personality as being masculine, and some have referred to it as a "he". Given that the Gravemind is a being composed of millions of absorbed consciousnesses, such a distinction really has no meaning.

Biography

Origin

At some point in the distant past, millions of years before the Human-Covenant War or even the human-Forerunner wars, the Flood came into existence, and through the will of the Precursors, infected large numbers of sentient life forms. The Flood merged them into a singular being, which in turn took on a consciousness derived from all of its hosts. The first known example of this was the ancient creature known as the the Timeless One, who claimed to be the last Precursor. The Didact wondered if all Precursors were such creatures, but found no answer.

This early Gravemind did not take on the form of its later counterpart, being far smaller and more discrete in form. This being was confined to a Precursor stasis capsule and placed beneath the surface of a small planetoid at the Milky Way edge by an unknown group of beings, suspected to be ancient Forerunners. The creation of this Gravemind and the downfall of the Precursors occurred almost concurrently, for the Flood was an important factor in their long-term plans for life in the Milky Way.

Prior to 110,000 BCE, a number of automated starships of unknown origin came from the Magellanic satellite galaxies and crashed upon numerous worlds at the galaxy's borders. These vessels were eventually discovered by the ancient humans and San 'Shyuum, which contained millions of glassy cylinders carrying a fine powder of non-living, moderately simple organic material. This powder was dispersed amongst the human and San 'Shyuum worlds, eventually creating and unleashing the first known Flood outbreak in this galaxy.

During the course of their onslaught against the humans and San 'Shyuum, the Flood would frequently capture, infect, and merge together host organisms into unified masses with an encompassing intelligence; the second known generation of Graveminds. When the humans turned the tide of the war in their favor and stumbled upon a "cure," the Flood were driven out and retreated from the Milky Way, not be seen again for another thousand years. While these early Flood were destroyed, and their Graveminds with them, the Flood would return in newer, more capable forms.

Forerunner-Flood war

A Gravemind present during the Forerunner-Flood war.

Main article: The Timeless One

During the Forerunner-Flood war, the Flood created many Gravemind forms, which collectively coordinated the Flood's efforts against the Forerunners. Eventually Forerunner naval tactics began to fail, and the Forerunners developed the Halo Array as a desperate countermeasure, which would destroy all sentient life in the Galaxy, thus denying the Flood "food" for growth. This was only to be used as a last resort, and the Forerunners refused to use the system.

While the Flood would gain and lose individual Graveminds during the war, their numbers were still nevertheless sufficient to form and maintain a collective array located in the galactic core. The Flood would continue to be an unstoppable and persistent threat to the Forerunners, who, despite their best efforts, were unable to stop the parasite's spread across the galaxy, despite many lengthy naval engagements that lasted for nearly 300 hundred years. As they continued to lose the war to Flood, the Forerunners would reluctantly turn to other, more risky endeavors. In accordance with their existing plan, multiple installations, including the Ark, Onyx and numerous Shield Worlds were constructed by the Forerunners as shelters for themselves and the sentient species of the galaxy, indexed as part of the Conservation Measure, when the Halos fired.

Around 43 years before the Array's activation, the Forerunners, specifically the Master Builder, deployed the first active Contender-class artificial intelligence, Mendicant Bias who would be in command of one of the original 12 Halo rings, Installation 07. This installation's first assignment was a test firing at the former Precursor world of Charum Hakkor. The purpose of this assignment was to determine the effects of the Array against the Flood, before it was deployed in earnest against the Flood's stronghold in the core.

This low-powered test firing destroyed every Precursor structure on the planet, and purged the system of all neurologically complex life, including the planet Faun Hakkor. An unexpected development of this test was the emancipation of an ancient being known as the Timeless One, an already existing Gravemind from the downfall of the Precursors. When the ancient Gravemind was brought to Installation 07 for study, at the Master Builder's orders, it entered into an extended conversation with the AI. During the course of the conversation, which ran for 43 years, this Gravemind explained the fullness of the Precursor's plan of unity and peace through the galaxy-wide infection by the Flood.

The Gravemind told Mendicant that the Forerunners were never meant to inherit the Mantle, and that they had defied the Precursors. It also told the AI that the if sentient life in the Milky Way could not defy the Flood, especially the humans, then all life would take be brought together and unified into the logical, advanced form of life; a collective, conglomerated entity without conflict and pain. It claimed that the Forerunners had forced the galaxy towards perpetual stagnation by stifling growth, conflict, and progress in their misuse and illegitimate claim to the Mantle. Eventually, Mendicant Bias became convinced by these arguments, and turned rampant, seeking to "correct" the flawed, misguided ways of the Forerunners.

To this end, Mendicant Bias began to cooperate with the Timeless One on Installation 07, where they continued to infect humans and Forerunners alike in a series of brutal experiments. 43 years after the release of the Timeless One, Mendicant Bias used the Halo ring to attack the capital of the Forerunner ecumene, and managed to inflict heavy casualties on the Forerunners, though it was soon forced to retreat. Eventually, the return of the Forerunners to the rogue installation and the shutdown of the facility and its custodian led to the capture and destruction of the Timeless One, and the banishment of the rogue Halo, resulting in a temporary setback for the Flood and Mendicant Bias. The Forerunner military continued to delay the use of the Halos for a time, instead continuing to deploy more conventional strategies against the Flood.

Later, the rogue AI assisted the Flood and the Graveminds in their assault on the Maginot Sphere, engaging the Forerunners in a final, brutal battle. Prior to this, the Forerunners developed a new AI, Offensive Bias, which coordinated the final battle against Mendicant Bias and the Flood. The Gravemind was destroyed or stopped by the first activation of the Halo Array.

Human-Covenant War

"Relax. I'd rather not piss this thing off."

— Master Chief to a struggling Arbiter, while both are being held prisoner.

Through neglect shown by the Monitor of Installation 05, 2401 Penitent Tangent, a Flood outbreak occurred, and the Gravemind was able to find enough biomass to rebuild itself deep under the Library of the installation. It assimilated the dead Prophet of Regret into itself and also captured the Monitor. During the Battle of Installation 05, the Gravemind was capable of utilizing Delta Halo's teleportation grid. After capturing the Master Chief and the Arbiter, the Gravemind gave them their "assignments" to stop the Halo's activation, and then teleported them to their respective targets. It is not known how the Gravemind, a non-mechanical Flood form, was able to tap into the teleportation grid. However, it is possible that when the Gravemind captured 2401 Penitent Tangent he absorbed the knowledge of how to access Halo's teleportation grid, as was done by Cortana from the control center of Installation 04.

Gravemind later used the UNSC In Amber Clad to board the Covenant holy city High Charity, crashing the frigate into a city wall and releasing numerous Pelicans full of the Flood plague. Within days he took over the entire city and all life within it.

Earth, The Ark and the Flood's defeat

"I am a timeless chorus; join your voice with mine, and sing victory everlasting!"

— The Gravemind to John-117.

The Gravemind initially planned to attack and infest Earth, but through the knowledge of the assimilated Regret (and possibly Mercy), he learned about the Prophet of Truth's plans to use the Ark to remotely activate the entire Halo Array. Realizing the extent of the danger he faced, the Gravemind did not attack Earth but instead used High Charity to make a Slipspace jump and crash-land on the megastructure. He briefly allied with the Chief and the Arbiter to stop Truth from activating the rings, but betrayed them the moment the crisis was averted. The duo managed to escape from their foe and discover Cortana's solution to the Flood—a replacement Halo ring made by the Ark. To activate it, the Chief infiltrated High Charity to retrieve Cortana, who had the Activation Index from the first Installation 04.

As the Chief traveled deep into High Charity, he faced multiple Flood forms. Taunted by the voice of the Gravemind, which allowed Cortana to briefly send pained messages as he corrupted and tortured the UNSC AI. The Gravemind became increasingly frustrated at the Spartan's progress, becoming suspicious of what Cortana was hiding from him and threatening to "feast upon the Chief's bones" if she did not reveal the secret.

After the Chief rescued Cortana, the Gravemind became enraged, realizing that she planned to use the incomplete Halo to destroy him. He attempted to kill them both but failed as the Chief successfully destroyed High Charity, presumably killing the Gravemind. But after traveling to Installation 04B, the Chief discovered that the Gravemind was attempting to rebuild himself on the new Halo. Despite his best efforts the Gravemind failed to stop the Chief. In the end, the Gravemind is thought to have been destroyed once and for all, as Halo's activation destroyed itself, the Ark, and the Flood.

Personality

"Now the gate has been unlatched, headstones pushed aside. Corpses shift and offer room, a fate you must abide!"

— The Gravemind after Truth's death.

The avatar of the Gravemind as seen in the Terminals.

The Gravemind has an obscure and complex personality. When he was first seen by the Master Chief and the Arbiter, he was calm and collected, if not seemingly sad or mournful, and he spoke with a sullen tone in his voice. He was also quite logical, psychologically analyzing the duo, and trying to convince the Arbiter of the Halo Rings' true purpose, to which the Arbiter reacted with stubborn pride. The Gravemind showed no irritation to this nor the bickering of 2401 Penitent Tangent and the former Prophet of Regret. Later, though, the Gravemind showed a more emotional side, basking in his victory at High Charity, and displaying a sinister air of anger when demanding answers from the newly captured Cortana.

In Halo 3, his personality undergoes a similar progression. Early on, he is shown to have a calm and collected personality, but once the activation of the Ark is prevented, the Gravemind bursts into a victorious, maniacal laugh, briefly boasting in iambic heptameter. In the following level, Cortana, a broader spectrum of his personality is asserted. He begins with his calm and collected voice, as well as a slightly confident tone. As the Chief finds his way deeper into High Charity, however, the Gravemind becomes more irritated by his progress, and begins to shout at him. Once Cortana is rescued, the Gravemind begins to emit a series of mangled, animal-like roars, and speaks in an infuriated tone. In the final level of Halo 3, Flood Dispersal Pods crash onto Installation 04B, and the Gravemind begins to speak again, this time in an angry yet confident tone.

The mostly collected and impassive tone that is frequently heard from it can be justified by his implied near omniscience; his knowledge of the present and ability to accurately predict the future means that he has little reason to worry about anything. He only becomes truly irritated or angry when an unforeseen event happens, or when there is something he doesn't know. Triggers for his anger include Cortana's secrets and the Chief's ability to rescue her. When defeated, he shows sadness, not anger; it may be that he has become used to omniscience, and is only truly angered when he is wrong. This is supported by the fact that in the level Cortana, his tone quickly changed to confidence and almost amusement when he realized parts of the Master Chief's objective (with phrases such as "Of course, you came for her! We exist together now. Two corpses in one grave").

He is also known to be quite manipulative: in Halo 2, Gravemind tricks the Chief into being a decoy to distract the High Prophets as he attempts to take over High Charity, and in Halo 3, he helps the Master Chief and the Arbiter to kill the Prophet of Truth, only to betray them when they have outlived their usefulness. It is also notable that the original Gravemind was able to convince the Forerunner AI Mendicant Bias to join his cause and turn his fleet upon the Forerunners by telling him that the Flood are the next step of evolution and that the Forerunners are denying it.

The Gravemind is not violent when it doesn't benefit him; this is what makes a Gravemind a key point in Flood evolution. Unlike the savage and bloodthirsty Combat and Pure Forms that precede and obey him, the Gravemind is able to put aside differences when it is necessary for its continued survival.

By the end of the game, the Gravemind gives a short monologue in a disheartened tone, cryptically admitting that he knows he can do nothing to stop his fate, which he believes was unjustly forced upon him. He says that the activation of Installation 04B will only add time "to a sentence [he] never deserve [d]". This seems to suggest that the Gravemind does not understand why the living races hate the Flood; indeed, he seems to think that it is only natural to absorb all life in the universe.

Throughout nearly all encounters with the Gravemind, he has shown a fondness for speaking in poetic style - specifically, iambic heptameter. When pressed about this detail by Cortana, he states that "I have the memories of many poets far beyond your limited human culture. And I have the quickness of intellect to compose all manner of poetic forms as I speak rather than labor over mere words for days."

Trivia

• The term "Gravemind" was coined by Bungie staff member Jaime Greisemer.
• In Halo 3, the Gravemind's face is never shown, unlike in Halo 2, when he is shown in his introductory cinematic.
• In several Forerunner data logs, the controlling intelligence of the Flood is referred to as a "Compound Mind".
• The Gravemind resembles Audrey 2 from Little Shop of Horrors, a tentacled, plant-like alien who is fed humans to grow and who is bent on world domination. Bungie staff and fans jokingly call it the "Little Shop of Horrors Reject" Parallels can also be drawn with Overmind from the StarCraft franchise, the graboids from the Tremors movie series, the Hive Mind creature from the survival-horror game Dead Space, and even Sauron from Lord of the Rings.
• Originally, the Gravemind was meant to have skulls as teeth; this was cut from Halo 2 and Halo 3 because it would have made it difficult for the parasite to speak.
• The Gravemind frequently speaks in trochaic heptameter. In Human Weakness, it was revealed that this is merely preference and he converses normally with Cortana after she criticizes him for it. He also mentions that he possesses the memories of poets of many alien cultures.
• The Gravemind is one of the few extraterrestrials to learn John-117's name.
• The Gravemind was initially going to have a much greater presence in Halo 2 and would have been introduced in the level Forerunner Tank, but due to time constraints, Bungie removed the level and instead made a long cinematic for his introduction.
• The Gravemind is voiced by Dee Bradley Baker.
• The Gravemind pictured in the Halo 3 instruction manual looks strikingly similar to Ogdru Jahad from Hellboy.

Gallery

• 

  Early concept art of the Gravemind.

• 

  Concept art of the scene in Halo 2.

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  The Gravemind in the Halo 3 Instruction Manual.

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  A Gravemind Moment in Halo 3.

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  The Gravemind in Halo Legends: Origins.

List of appearances

• Halo 2 (First appearance)
• Halo 3
• Halo: Combat Evolved Anniversary
  • Terminals
• Halo: Evolutions - Essential Tales of the Halo Universe
  • Human Weakness
• Halo Legends
  • Origins
• The Forerunner Saga
  • Halo: Cryptum
  • Halo: Primordium