Editing The Atalantos Worlds (section)

===Necrons===
Aside from the dangers posed by mundane threats like radiation, wandering singularities, rogue planets and supernovae, the Atalantos worlds are often beset by enemies of a more calculating nature. Though the low human population near the Galactic Core offers little food for the Ruinous Powers to feed upon, a significant number of Tomb Worlds have been located in the vicinity during the course of surveying expeditions. 

Some of these Tomb Worlds are still inactive, but as the milennia have progressed, the Necron threat has grown significantly. Much of the War Scribes' time is spent containing and repelling these reawakening xenos, attempting to shield the rest of the Imperium from their predation. It is fortunate that the Necron Dynasties seem to despise each other as much as the Imperium, and their infighting has kept the immediate risk lower. 

Several Tomb Worlds have been destroyed by the War Scribes, but each time it has come at the cost of a brutally devastating war, a long recovery time, and the depletion of what few Dark Age weaponry the Chapter still possesses. The War Scribes have become more frantic in their quest for relic weaponry lately, spurred on by the fear of being caught unprepared by a major Necron invasion.

====Known Active Necron Dynasties====
*Ulkhesh Dynasty (Known for excessive proportion of Deathmarks. Escaped notice by larger Dynasties by basing much of their forces in alternate dimensions)
*Zelrakh-Khemta Dynasty (Unusual Dynasty with co-ruling Phaerons. Believed by Imperial Scribes to be a merged Dynasty by the Necron equivalent of marriage.)
*Il'Kholas Dynasty (Known for being largely fleet-based. Since activation of Tomb World, majority of forces have warred with other Dynasties for control of spacelanes and resources. Tomb World largely abandoned.)