The Flood Halo Gravemind

While only one gravemind is ever seen in the games the title is given to the final stage of flood evolution in which the flood becomes a superorganism.

The flood halo gravemind. It is the overarching antagonist of halo. It is a near omniscient creature with complete control over all flood forms. The flood is a highly infectious parasite which is released several times during halo s story. The gravemind inferi sententia meaning thinking dead infrequently referred to as the ancient one and formally known as a compound intelligence is the shared consciousness of the entire flood species which first emerges when the flood reaches the coordinated stage.

The gravemind is a massive self aware flood form with complete control over all flood forms and all memories of the lifeforms absorbed by the flood. The flood exists in a fairly stable state in the absence of a gravemind. Combat evolved a supporting antagonist in halo 2 and one of the main antagonists of halo 3 alongside the prophet of truth. The gravemind starts out as a proto gravemind which is created by fusing the biomass of sentient life and after enough bodies are merged into it it will gain self awareness becoming a gravemind.

The gravemind is a centralized intelligence generated by the flood during the feral stage in the parasite s efforts to acquire more coherence and direction. It was voiced by dee bradley baker. This stage of a flood outbreak is known as the feral stage. The gravemind inferi sententia meaning thinking dead is the final stage in the life cycle of the flood and is the ultimate intelligence of the flood.

They lack the ability to coordinate their efforts but the flood will spawn spontaneously and spread by infecting sentient life forms specifically those that are self aware and capable of introspection.