Editing Cypher (section)

===Knight of Lupus / Green Knight===
Thankfully we have more than just theories to go off, and something that ''is'' known for certain: his history with the Order of Lupus. If there has been more than one Cypher since the Horus Heresy, we know who the very first one was. Anyway, the Order of Lupus was a Calibanite Knight Order that was actually a [[Ordo Malleus|cult that studied and collected knowledge of Chaos]]. They were wiped out by Lion El'Jonson, save for a single survivor who was allowed to join the Order and later the Dark Angels and became The Lord Cypher, a rank of the Dark Angels. He is the person who introduced Luther to the "truths" of chaos, but kept Luther and the other Dark Angels on Caliban ignorant of the [[Horus Heresy]] at large that was going on around them.

Through Zahariel's eyes: ''"Where there had been an armour-clad warrior there stood a man garbed in a robe of bark and leaves, a tree given human form. More than a tree, a whole forest, his hair its spilling canopy, his muscles powered by the strength of millions of deep roots…"'' This may seem weird but it seems to be a reference to [[The Green Knight]] of Arthurian legends.

The Green Knight can appear as one of Arthur's greatest champions where he is often portrayed as an exorcist and one of the most powerful knights in Arthur's court, or he is transformed into the Green Knight in order to test Arthur's court. His major role in Arthurian literature includes being a judge and tester of knights, and as such the other characters see him as friendly but terrifying and somewhat mysterious. He was also a [[Brettonia|Brettonian]] rather obviously. Or as a reference to the green man, a vegetation being in medieval art; a recollection of a figure from Celtic mythology; a Christian symbol; or the Devil himself. very fitting for Caliban don't you think.

In any case, this Lupus-Cypher was "killed" ''(we see him fall, and the body removed by Zahariel's men)'' during the Fallen uprising, and the Librarian Zahariel took his place as Lord Cypher. The whole young Knight of Lupus thing might just be some kind of elaborate cover story though as when he was unmasked by Zahariel just before his death, Zahariel was able to recognize him as someone from his own past, he may not have even been a space marine given he was still able to feel fear, though he almost certainly was not human.