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{{otheruses|USE=anti-warp structures|OTHERUSE=Necron mobile weapons emplacement|OTHERPAGE=Necron Pylon}}

'''Pylons''' are monumental constructions of, once mysterious but now known to be [[Necron]] in origins, found on numerous planets across the [[galaxy]] that hold back significant overlap between the [[Warp]] and [[realspace]].{{Fn|5a}} The form and number of the pylons on each respective world are unique to one another, but their effects the same.{{Fn|6}}

The necron pylons employ [[Null field|negatively empyrically charged]] [[noctilith]] in order to dampen the effects of the warp.{{Fn|6}} However, Noctolith can both repel and attract warp energies. The forces of [[Chaos]] have learned how to subvert these materials and device to instead thin the veil between the Warp and reality.{{Fn|9}} An example of these devices can be flipped to being in a position of positive empyrical charge, empowering local warp energies in realspace, is seen in the subversion of [[Project Aurora]]'s pylon network on [[Demerium]].{{Fn|7}}

Each unique set of pylons appear to have unique properties, as seen in the [[Pariah Nexus]]. Each set is one part of an immeasurable complex machine with a robust number of redundancies.{{Fn|6}} Necrons are capable of seeding worlds with Pylons using vessels known as [[Pylon Ship]]s.{{Fn|6a}}

[[Archmagos Esotericus]] [[Sigulus Herstoffen]] of [[Stygies]] did much research on the pylons, and [[Belisarius Cawl]] developed his work much further by examining the pylon networks once found around the [[Eye of Terror]].{{Fn|6}}

Pylons can be reduced to ruin through overloading them with massive amounts of [[Warp]] energy, such as an influx of [[Daemon]]s. During his [[Black Crusades]], [[Abaddon]] hunted and destroyed pylon networks on planets near the [[Eye of Terror]], thereby weakening the barrier between the Warp and realspace. During the [[13th Black Crusade]], he destroyed Cadia itself, and its pylon network with it. This caused the formation of the [[Great Rift]], which split the galaxy in two.{{Fn|10}}

Some time before 338.M41, the [[radical]] [[Inquisitor]] [[Quixos]] developed an interest in the warp-altering properties of the Cadian pylons, in the hope of permanently closing the Eye of Terror. Controlled through Quixos' enslaved [[daemonhost]] [[Cherubael]], a [[Chaos Cult|cult]] calling itself the "[[Sons of Bael]]" studied the pylons.{{Fn|4a}} These studies bore fruit, and Quixos duplicated the pylons on other worlds using corrupted merchant cartels and personal supplies of [[Blackstone]].{{Fn|4b}}

Recently the [[Necrons]] under the [[Silent King]] [[Szarekh]] have created the largest pylon network in the [[Nephilim Sector]]. Known as the [[Pariah Nexus]], it is part of an ambitious plan by the [[Xenos]] to eventually shut out the Warp entirely.{{Fn|11}}

*[[Cadia]]

*[[Demerium]]{{Fn|7}}

**[[Zeidos]]{{Fn|6b}}

<gallery mode="packed" heights="200px">

CadianPylon.jpg|Cadian Pylon{{Fn|2}}

</gallery>

*[[Null field matrices]]

*[[Project Aurora]]

*[[Pylon Ship]]

*{{Endn|1}}: [[The 13th Black Crusade (Background Book)]], pg. 15

*{{Endn|2}}: [[Codex: Chaos Space Marines (6th Edition)]], pgs. 19–20