

The Gravemind is the highest stage of the Flood's development, though its complexity and capabilities depend on the size and number of the key minds which can, at the height of a Flood outbreak, engulf entire worlds. While this compound mind inhabits all Flood forms, it is distinctly embodied in processing nodes of agglomerated Flood biomatter known as key minds.

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. " I am a monument to all your sins." - The Gravemind Collective Flood consciousness frequently speaks in trochaic heptameter

Massive worm-like head with many tentacle appendages. For the Halo 2 campaign level or other uses, see Gravemind (level) and Gravemind (disambiguation). This article is about the Flood intelligence.
