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'''Ark Reach Secundus''' was is a world that was brought into the [[Imperium of Man]] by units of the 47th [[47th Expedition Fleet]] and a mixed taskforce of the [[Legiones Astartes]] during the [[Great Crusade]]. Known to the pre-Imperial inhabitants, the [[Avenians]], as '''Heliosa''', it was nicknamed '''Shrike''' by the Imperial elements who fought there. Ark Reach Secundus was the [[Cardinal World]] of the Avenian empire and offered significant resistance to joining the Imperium.{{Fn|1c}}