In RoB you have grown used to the stimulant of combat of the ever lurking enemies of mankind. You learned the ways of Bolter and Chainsword. Now you face a Challenge of its own merit. Ancient leaders have always said that the pen is mightier than the sword. but what powers the pen is the deciding matter. A learned mind can save millions of the innocent while an unlearned mind can cause destruction on a catastrophic scale. History is doomed to repeat itself from those that dont learn from it. For this Challenge you will be sent to the radioactive wastes of the once great Arcanum. Once before it held great libraries and testing grounds for the warrior and the psyker. Go tho the depths of this once magnificant place and recover any lost history you can find. But be warned the wastes of the Arcanum and the dark knowledge it once hid can be just as dangerous as any enemy. Mission: A single Wing of the Arcanum is deemed free of radiation. The cause of such a thing is unknown. In your Quest for knowledge the arcanum is the best bet however the radiation is a deadly foe to contend with. find your way through the containment zone and learn the truth behind the the cleansed area. Link to The Arcanum [spoiler][url]https://www.bungie.net/en/Forum/Post/110652207/0/0[/url][/spoiler]