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From PathfinderWiki
Type Outsider
(aeon, extraplanar)
CR Varies
Environment Any
Adjective Aeonic

Source: Bestiary 2, pg(s). 8-14

Aeons are an inscrutable race of beings who serve to preserve balance throughout the Great Beyond, either by reinforcing order or by promoting chaos. They constantly tinker with the fabric of the planes in an effort to maintain a balance beyond the knowledge of mortals.[1]


Aeons are created on the Astral Plane. When two opposite thoughts broadcast from other planes coalesce on the Astral Plane and collide, they form aeonic nebulae, which flash with momentary bursts of emotional auras and crackle in metaphysical debates. As a nebula grows into a critical mass, a new aeon is created, embodying the dichotomy of the nebula where it was born. From there, most aeons disperse to wherever they are needed in the multiverse and use the Astral Plane primarily for transport; only bythos continue to reside in the Astral Plane after their creation.[2]

All aeons are bound in a state called monad, a supreme oneness with all other aeons and the multiverse itself. Aeons exist as an extension of the multiverse in the same way that organs form a normal creature. When destroyed or upon accomplishing specific goals, their energies are recycled by the monad.[1]

Aeons are emotionless and single-minded in an ever-changing pursuit of multiplanar equilibrium. Their way is inscrutable and can be beneficent at one moment and destructive the next, but always without emotion. Each type of aeon embodies its purpose and area of control that it would seek to balance, attempting to enforce a perfect harmony upon all things.[1]

Aeons are not actively malicious but care nothing for individual beings or their struggles and emotions. Creating or destroying life, and triggering a calamity or preventing it mean equally little in their manipulation of symmetry; only the final tally matters. All life is life and all death is death, to be protected or eradicated regardless of shape.[1]

Aeons have no culture, society, personality, or memory beyond the present. Aeons embodying greater multiversal principles are usually considered greater, and their works proceed without hesitation when their goals jeopardise or threaten lesser aeons. Aeons only cooperate in matters of great existential concern when directed by the monad, and only temporarily. They see every task as independent from others, and might fully support an individual whom they have clashed violently against in the past.[1]

In rare cases, aeons can go rogue and take on extreme personalities, coming to favour one aspect of their being over the other. These unstable aeons are considered extreme high-priority targets for other aeons to eliminate.[1]


While aeons form and frequently travel the multiverse via the Astral Plane,[2] they have slowly grown their presence in Axis, where they often come into conflict with inevitables. Planar scholars describe a trend of aeons favouring order over chaos and speculate if they have designs on Axis itself.[3]

Aeons often use the Boneyard as a staging point to the planes, and in many cases are authorised by Pharasma or psychopomps to use portals in the Boneyard to facilitate such travels.[4]

In the Maelstrom, legions of aeons guard the Antipode from regular assaults by proteans and prevent the cycle of souls from disruption, holding back the Maelstrom from consuming the entire multiverse.[5]