When Did librarians come back?

[Grimtooth]

My point is that there were primarchs who had pro-librarian stance

This much is fact...

 

but all of them knew how Magnus misuses warp

This however is total speculation on your part and seems quite heavily influenced by your glaring bias.

 

I think the behind the scenes action at Nikea, the "Thousand Son" conversation with Hawser and altercation with Bear, along with his impersonation and (apparent) assault on a Custodian sealed Magnus's fate at Nikea.

 

So the right answer was found (Magnus was guilty of what he was being accused of) but for the wrong reasons (the "Thousand Son" in question was actually an agent of the Primordial Powers, or so I thought).

 

seems very "grimdark" 40k to me.

 

WLK

 

No - ruling was already made, but deamon influenced Russ' hate - that is certain...

 

I am almost 100% sure that ruling was not yet made as the custodes made the remark that this would seal Magnus' fate or something along those lines.

I was also, then here is this :

 

Hawser sat up. They were in the chamber beyond the quiet room. The moving light of magmatic turmoil dappled the walls. It was uncomfortably hot. The warmth of the smoky air had caused him to doze. He imagined that sleep was an attempt by his mind and body at self-preservation after the unsettling clash with the Thousand Sons warlock.

Considerable numbers of Tra were gathered in the chamber, along with Wolves from Onn and Fyf.

‘Did they catch him?’ Hawser asked.

Helwintr glanced at him, and then shook his head. He was applying salve to the weeping burns on his hands. Given the damage Hawser had seen earlier, the flesh was healing with astonishing speed.

‘He slipped into the shadows,’ said Helwintr.

‘Spineless Custodes lost him,’ said Skarssen.

‘It doesn’t matter anyway,’ rumbled a voice. ‘It doesn’t matter a damn now.’

The Wolf King loomed into the chamber, a hulking mass of shadow backlit by the fire-glow. He was flanked by the painfully beautiful maidens bearing their raised longswords.

He came closer, and the men bowed their heads, even Ogvai and Lord Gunn. The flickering flame light revealed his face, half shadowed, and the broad smile that exposed his inhuman teeth.

When he spoke, it was with a wet leopard-growl.

‘The Emperor has made His ruling,’ he said.

 

 

Damn - now I'm not sure anymore...

 

The part that I am referencing is right after the battle itself when Hawser prevents Bear from ripping out his throat. There was a Custodes present at that time that mentioned something about informing the Emperor.

[DarthMarko]

But it is still speculation to say all of the Primarchs knew the full extent of Magnus' ventures into the Warp.

 

Frankly, it doesnt matter what the Primarchs thought, as the Emperor made the decision for good or ill. The only thing that matters is what he thought.

 

And since we are never going to get this scenario from his eyes (i would pay ALOT of money for that story), EVERYTHING here is speculation. all we know is what he did, and not why he did it.

 

WLK

I thought we all agreed that it was all speculation two pages ago or so?

C'mon, speculation is all what we have in these discussions, otherwise it would be very boring (you know demanding quotes like some guys on this forum)...

[Grimtooth]

So with it more then likely being the Sigilite ultimately making the call to recall the edict, what is going to be the sudden reversal for the librarians whose methodology and philosophies are based on the teachings from a traitor Legion?

 

 

Probably the same with some of the tactics in the Codex Astartes being based off of the Traitor Legions pre-Heresy tactics: they will keep them. It is apparent that whatever guidelines the Librarius program followed is rather different from the few non-Kson librarians we have seen. The Thousand Sons are the only Legion to have Familiars. They are the only Legion to have trusted in their power that they spent every resting moment walking in the warp(or at least Arhiman did). They are the only Legion that relied on divinity. No wait, scratch that. Forgot about the Rune Priests. However, the KSons are the only Legion that controlled automota and a Titan using psy-receptive crystals that had been worked into the command circuits. There is a lot the KSons did that the Librarians in the other Legions didn't even contemplate. So, if that material was considered "harmless" as it was written by the closest thing to an expert the human race produced besides the Emperor, then Gulliman most likely would have used it. The same way he incorporated Iron Warrior siege tactics into his Codex and other examples.

 

Dang, another doublepost.

 

What I am talking about is the mindset regarding the use of the warp and psychic powers as explained by Magnus and later echoed by the White Scars librarian. During the edict the Emperor was very vocal in rejecting the whole bolter analogy and the over simplification that was presented as an argument for the librarians. There will have to be a reckoning between the philosphy as expressed by the Emperor and that of Magnus and the White Scars Librarian who was represnting the librarian collective that has stepped forward.

[DarthMarko]

So with it more then likely being the Sigilite ultimately making the call to recall the edict, what is going to be the sudden reversal for the librarians whose methodology and philosophies are based on the teachings from a traitor Legion?

 

 

Probably the same with some of the tactics in the Codex Astartes being based off of the Traitor Legions pre-Heresy tactics: they will keep them. It is apparent that whatever guidelines the Librarius program followed is rather different from the few non-Kson librarians we have seen. The Thousand Sons are the only Legion to have Familiars. They are the only Legion to have trusted in their power that they spent every resting moment walking in the warp(or at least Arhiman did). They are the only Legion that relied on divinity. No wait, scratch that. Forgot about the Rune Priests. However, the KSons are the only Legion that controlled automota and a Titan using psy-receptive crystals that had been worked into the command circuits. There is a lot the KSons did that the Librarians in the other Legions didn't even contemplate. So, if that material was considered "harmless" as it was written by the closest thing to an expert the human race produced besides the Emperor, then Gulliman most likely would have used it. The same way he incorporated Iron Warrior siege tactics into his Codex and other examples.

 

Dang, another doublepost.

 

What I am talking about is the mindset regarding the use of the warp and psychic powers as explained by Magnus and later echoed by the White Scars librarian. During the edict the Emperor was very vocal in rejecting the whole bolter analogy and the over simplification that was presented as an argument for the librarians. There will have to be a reckoning between the philosphy as expressed by the Emperor and that of Magnus and the White Scars Librarian who was represnting the librarian collective that has stepped forward.

Hm, White Scars librarian was like a third party then...???

[Chaplain ChonkE]

Does it bother anyone that Fulgrim was present to greet Magnus as a brother and confidant in Thousand Sons yet he was also aware of Russ being the source of the accusations Hawser and Russ come marching out with the Sisters in Prospero Burns and sits at the debrief of Hawser? Seems like he was playing both side of the fence.

[KarkassBC]

Sorry for reading so many points, but I want to give some corrections to previous posts.

 

@Kol_Saresk post 233

The Magnus's warning in Outcast Dead arrived after Istvaan V because at the same time the Imperial Astropaths received the dreaming-state messages of the death of Ferrus Manus and the lost contact with Corax and Vulcan.

 

@Brother Ramses

post 232 - SW observer were sent before Primarch Dorn met Garro, Iacton Qruze and Keeler. Otherwise Sanguinius wouldn't follow an order of Horus when everyone considered him as a traitor. Word Bearers were traitors (at least officially) only after Istvaan V massacre.

My guess is the SW were sent at the same time of the main fleet to Prospero to keep an eye on another psyker-user Legion (Blood Angels were co-founder with TS of the Librarium project - maybe someone would be suspicious of possible use of heretical warp powers)

Also the Blood Angels didn't know about the raze of Prospero, otherwise the Space Wolves were immediately arrested or at least sent away.

 

post 245 - the Mortarion testimony (the only one primarch speaking except Magnus) was about a possible future of continous use of psykers powers because he described a sorcerers' world and not the action of the Thousand Sons.

 

@Wolf Lord Kieran

Russ and his Wolves linked the demon to the Thousand Sons (Prospero Burn) because they didn't know about Chaos. In their mind they had only the Thousand Sons, so they blamed them for those actions.

I considered this fault a stain to the Emperor more than the Wolves, because they hadn't received the correct information. So I would put the blame on the Top Chief...

 

@Darth Marko - post234

On Aghoru against the evil warp spirit inside the mountain, the WS and TS battled together using bolters, krak missiles and psychic powers (read the actions of Othere Wyrdmake). In the Ark Reach, the TS used a lot their powers to open a path to the SW, but the problem arose only around the Great Library.

 

In that story there is another "continuity" problem on the Space Wolves. Amlodhi Skarseen told to the TS defending the library that they can raze everything they want because they found the enemy system as first, so it's their decision about where and when.

But in many places there are different and discordant information: an explorator ship belonging to the Word Bearers founding the systems and Lorgar and Kor Phaeron leading the preliminary talks to the local governors for a peaceful compliance before the request to aid to TS and SW.

 

Sorry for too many answers in one post.

[Kol Saresk]

Thanks, I wasn't sure of when it arrived and I didn't have my books on me.

[KarkassBC]

Thanks, I wasn't sure of when it arrived and I didn't have my books on me.

 

To be precise the message of Istvaan V arrived before Magnus, but the book had the worst timeline in the BL production.

 

Horus knew of the Raze of Prospero after Istvaan III and had spoken to Russ after the Istvaan V massacre to change the order received after the arrival of Magnus in the Emperor Chambers...

 

So it's best to not use at all "Oucast Dead" in any discussion. At the end (except for the timeline of events) the books was very good and interesting.

[Kol Saresk]

At the very least, I wouldn't use it to establish the timeline.

[Jarl Kjaran Coldheart]

@KarkassBC: the Wolves werent the only one, apparently Sanguinius and Fulgrim thought that Hawser was a pawn of Magnus as well, as the brief meeting of the 3 showed on Nikea.

 

everybody got duped on this one.

 

WLK

[DarthMarko]

Does it bother anyone that Fulgrim was present to greet Magnus as a brother and confidant in Thousand Sons yet he was also aware of Russ being the source of the accusations Hawser and Russ come marching out with the Sisters in Prospero Burns and sits at the debrief of Hawser? Seems like he was playing both side of the fence.

I already posted that, Fulgim was "DA MAN :D "...

I' mean, he was in orbit (with Russ and supported him and his theory on Hawser) and moments later greated Magnus with grining smile...

IMHO he wasn't on Magnus' side because he thought that psykic powers are inperfection...so I' think Fulgrim was the first backstaber...

[Chaplain ChonkE]

1st. I need to not post when I drink. Terrible construction!

 

Fulgrim does certainly seem to be pretty slimy in this whole deal. Does he have the Laer blade yet?

 

Besides, as slimy as Fulgrim and *everyone* was at Nikaea it was the 4-Powers that were pulling the puppet strings that day. Guilliman said in Know No Fear that the Council took away the only effective weapon for fighting the forces of the Warp and he was very correct.

 

I wonder what Lorgar and company were up to at the time cause I dont seem to recall anything about them mentioning Nikaea in the books. You would think he would be heavily involved somehow and probably not in a good way for the Imperium. Maybe he was the puppetmaster in proxy for the 4-Powers. That would be interesting. It always bothered me how a Daemon could get into what would probably one of the most secure facilities in the galaxy to both planar and extraplanar attack, as well as warded from psyk/sorcery and other magic.

[Jehoel]

1st. I need to not post when I drink. Terrible construction!

 

Fulgrim does certainly seem to be pretty slimy in this whole deal. Does he have the Laer blade yet?

 

Besides, as slimy as Fulgrim and *everyone* was at Nikaea it was the 4-Powers that were pulling the puppet strings that day. Guilliman said in Know No Fear that the Council took away the only effective weapon for fighting the forces of the Warp and he was very correct.

 

I wonder what Lorgar and company were up to at the time cause I dont seem to recall anything about them mentioning Nikaea in the books. You would think he would be heavily involved somehow and probably not in a good way for the Imperium. Maybe he was the puppetmaster in proxy for the 4-Powers. That would be interesting. It always bothered me how a Daemon could get into what would probably one of the most secure facilities in the galaxy to both planar and extraplanar attack, as well as warded from psyk/sorcery and other magic.

In Fulgrim, the Battle of Laeran is after Horus is declared Warmaster and thus after Nikea.

[Chaplain ChonkE]

Perfect! Much Thanks Jehoel. I have only read Fulgrim once and have not picked it up since ^.^

 

Hmmm. So it begs to question: Why does Fulgrim play both sides before his 'known' direct influence by Chaos? Maybe he was just hedging his bets to be on the 'winning' side or just wanted the insider's view? Was Fulgrim playing catspaw for the Emperor/Imperial machine or maybe even Russ?

 

While I am not always the most dead-set on the HH series, it is nice to see the sparks before the flames. 'The fire rises' to quote an awesome Tom Hardy.

[KarkassBC]

1st. I need to not post when I drink. Terrible construction!

 

Fulgrim does certainly seem to be pretty slimy in this whole deal. Does he have the Laer blade yet?

 

Besides, as slimy as Fulgrim and *everyone* was at Nikaea it was the 4-Powers that were pulling the puppet strings that day. Guilliman said in Know No Fear that the Council took away the only effective weapon for fighting the forces of the Warp and he was very correct.

 

I wonder what Lorgar and company were up to at the time cause I dont seem to recall anything about them mentioning Nikaea in the books. You would think he would be heavily involved somehow and probably not in a good way for the Imperium. Maybe he was the puppetmaster in proxy for the 4-Powers. That would be interesting. It always bothered me how a Daemon could get into what would probably one of the most secure facilities in the galaxy to both planar and extraplanar attack, as well as warded from psyk/sorcery and other magic.

In Fulgrim, the Battle of Laeran is after Horus is declared Warmaster and thus after Nikea.

 

I'm not completely sure about that. Nikaea was after Ullanor for sure but I don't know which one of Laer campaign or Nikaea happened first.

 

In Fulgrim there is this part: "Laer had been one of the first species encountered by the Emperor’s Children after taking their leave from the Luna Wolves and the great triumph on Ullanor".

 

So this line told us that the Laer campaign happened close after Ullanor... but not so much given the time scale of the imperium lore.

[Kol Saresk]

And I imagine Nikea would have taken time to prepare for as the site had to be terraformed and then built.

[Blood Angel Scout]

It took the TS a year to travel to Nikea so it's construction could've been taking place while they travelled and the description of it as they arrive suggest it is a recently formed planet.

 

Going by other elements from ATS, Laer is after Nikea (as well as the trip to Murder as Ahriman foresees the BA captain's death by the arachnid) as when the rembrancers are talking about whether the TS will return to war, mentioning the EC on Laeran, Luna Wolves on One Forty Twenty (Davin?) and Ultra's at Mescalor while the TS have been studying since returning to Prospero

[KarkassBC]

It took the TS a year to travel to Nikea so it's construction could've been taking place while they travelled and the description of it as they arrive suggest it is a recently formed planet.

 

Going by other elements from ATS, Laer is after Nikea (as well as the trip to Murder as Ahriman foresees the BA captain's death by the arachnid) as when the rembrancers are talking about whether the TS will return to war, mentioning the EC on Laeran, Luna Wolves on One Forty Twenty (Davin?) and Ultra's at Mescalor while the TS have been studying since returning to Prospero

 

You are right. I found the same point in page 322, so the time sequence was Ark Reach, Ullanor, Nikaea, Laer campaign. So in that case Fulgrim didn't take the Laer weapon and Fabius Bile had started to "improve" the EC geneseed. Sincerely re-reading that all the events happened in a period of only two years, shocked me a little.

 

Remain the point that if Fulgrim fell toward Chaos he had some reasons for that. Otherwise he would remained loyal.

 

At the Nikaea council, Fulgrim and Sanguinius escorted Magnus to the trial and exchanged oaths in front of the Emperor. This image gave me the idea that the two primarchs would take one the role of accuse the other of defense, but after that they didn't make actions. Maybe they would be only the "enforcers" to the final decision of the Emperor, and in that way the Emperor choosed one pro and one against the librarium project.

 

Until now I haven't found a clear view of the opinion of Fulgrim about the psykers. Speaking only about an "imperfection" is not too much because we don't know if he disliked the powers or was completely against it.

[Kol Saresk]

To be honest, since Fulgrim is more than willing to use the Warp after his fall, I'm not sure that line can fly. The "imperfect" psykers line. I can see him going along with the creed perhaps a bit more zealously than the other Legions due to the III Legion's status as the "Emperor's Children" but part of Fulgrim's thing was to be able to perfectly plan every strategy with every weapon available. Psykers would have been a weapon he would employ because they could help his plans run more smoothly if he put the right psyker in the right place.

[Grimtooth]

I think some of you need to realize that for Fulgrim and the Emperor's Children, up becomes dow and sometimes sideways with a does of cats and dogs eating tea and crumpets. The whole perfection versus imperfection thing gets completely tossed out the window as seen by the authorization of Fabius' little workshop and stuff.

 

As for Fulgrim and Sang being at the council, I honestly believe it was more of, "here are a couple of friendly faces for when we declare you nothing but sorcerers".

 

Back to the somewhat topic at hand, I have a very strong feeling it is going to be the Sigilite rescinding the edit. In fact an idea drifted into my mind while on a long drive that maybe we have been looking at this whole retcon wrong. Bear with me on this adventure;

 

The canon forever has been that sorcery was bannned. We have the HH series come out and it has been changed to that the Librariams and librarians have been banned. However, what if is indeed both?!?

 

The very first edict was not a ban on sorcery, but a ban on librarians and the Librarian program with the Sigilite coming out to modify it to be a ban on sorcery. Basically a switcheroo, where the older fluff actually was what was "kept" in the record books as the official edict and the newer fluff was what was originally passed but later changed to a ban on sorcery.

[DarthMarko]

EC considered psykic powers as INPERFECTION and rejected everything about warp (based from the galaxy in flames, Fulgrim and that story when Fulgrim gets beat by his captains),but they used organs from aliens to achive their goals (coral city-when eiodolon uses that sonic boom)and bring them closer to perfection...so there is a difference...I guess so...

 

after Heresy, and in final stages of the heresy- who the hell knows...probably yes

[DarthMarko]

again dp - damn internet connection...

[frostclaw222]

re Side Topic: The Edict banned Librarius departments, then forbade the use of psychic powers. While there might be wiggle room to some folks' perspectives, as far as I can see, it was pretty emphatic.

 

That being said, I find two things curious/conflicting:

 

1) Malcador sending out Wolves with a Rune Priest in tow to babysit potential problem primarchs, like Sanguinius.

2) The co-location of Custodes and the Silent Sisters with the Rout and its Rune Priests at the burning of Prospero, under orders of the Emperor or Malcador (as modified by Horus Lupercal).

 

Given that this means (at least upon cursory examination) that the Emperor's seneschal, personal body guards, and witchhunters are all acting as if the Wolves' Rune Priests are exempt from the prohibition on psykers, I am forced to conclude one of the following is true:

 

1) The Emperor never meant the Edict to apply to the Wolves. This might also potentially impact the Storm Seers of the White Scars, but given their role in assisting in the establishment of the Librarius project, it just as likely might not.

2) The Emperor meant for the prohibition to apply to all psykers among the Astartes, but later (thus far offstage) personally, or through Malcador acting in his stead during his work on the Throne, an exemption (possibly for the purposes of Prospero only, but perhaps more generally) was issued to the Wolves. If limited in scope to Prospero, this could have represented a belief that Magnus would not come easily, and that the Custodes and Sisters contingents provided were viewed as inadequate to counteract the Thousand Sons' use of witchcraft in defense of their homeworld.

3) Horus had something to do with it, just as he did with the severity of the effort itself. This I view as unlikely, since the Custodes were (as ever) following orders from either the Emperor or Malcador, and a modification of that sort would have been difficult to swallow, and would likely have been "checked on."

 

These potential rationales allow for everything that happened after the Edict with respect to the Wolves and their supposed exemption/hypocrisy/whathaveyou, and would still allow for the Blood Angels questioning the presence of a Rune Priest at Signus. This would also allow for the vociferous protestations from the Wolves, especially if the Exemption was made under secrecy, which I imagine it would be, if it also permitted for Rune Priests to be placed near primarchs whose psychic potential was viewed as a possible threat. They were judged as worthy to utilize their skills and powers by the Emperor (or Malcador), which, while they couldn't come right out and say it, justified their perspective that their power was pure. And if they couldn't say "The Big E gave me a permit," if said permit was part of classified orders, they could in fact point to their belief that this somehow justified their view as to the purity of their psykers.

 

You'll note I've left off any justification for the exemption based on the Vlka Fenryka being the Emperor's Executioners. Recent difficulties AD-B has gone through arguing with the more rabid Wolves fans has caused me to refer to such a designation with caution. It is heavily suggested in places that the Wolves had something to do with one of the missing legions coming to an end, but at no point is this explicitly stated by an unbiased source. This could in fact just be a biased belief by the Wolves that they are in fact the ultimate sanction, one that is coincidentally supported later by their selection to prosecute the Prospero action, when in reality it might just have been Malcador thinking, "Russ, you raised a stink and made this whole mess start. Now, you get to clean it up."

 

So, this isn't me pulling a fanboy and calling Rune Priests or the Wolves themselves special, uber snowflakes. Far from. Despite their perspective, the Rune Priests are in fact psykers. Ergo, something had to happen for a loyalist legion to completely disregard the Edict. And the only way that happens is for the word to come down from On High that they should do so. And the only way for that to happen and for Sanguinius and his lieutenants not to know about it is for said word to be eyes-only.

 

Now, back to the main topic:

 

Everything I've heard and read over the years supports the idea that psykers were used by both sides during the Siege of Terra. Therefore, something's got to give soon. Also, even with the Emperor's Ascension to the Throne, I can't seen his surviving loyalist sons abandoning or rescinding the Edict out of hand. So, either the Emperor himself overturns it and reestablishes the Librarius, or Malcador does in his role as seneschal.

 

I think the logic would flow much as we've seen it in books covering the time since the Edict came down: multiple instances where the Edict placed the loyalists in positions where their inability to employ psykers left them overly vulnerable to the predations of warp entities and those traitor marines who had already gone far enough down the path of corruption to begin demonstrating possession or chaotic gifts. Reinstating the librarians for defensive purposes (at least for the duration of the Heresy) then becomes a necessary evil.

 

I'm recalling the prologue to a recent Iron Hands novel, where Ferrus ruminates on his sons' obsession with the weakness of flesh and cybernetic enhancement, and how he hopes one day to bring them back from it, but never gets around to it, and the obsession becomes one of the defining aspects of the chapter by M41. I think perhaps the reinstating of Librarians might've been like that: something the Emperor or Malcador did in extremis, with the knowledge that once the crisis was averted, they'd again enforce the Edict, but as neither survived the Heresy, the repeal remained permanent.

 

I find it really curious that the Edict was so far-reaching and yet so short-lived. Yes, it didn't touch the primarchs themselves, technically, but it sort of contradicted the Emperor's eventual desired goal of Magnus sitting the Throne. I'm forced to think that either the Emperor knew there was Really Bad Stuff about to happen, and thought Magnus was it instead of Horus, or that the dispatching of the Wolves to Prospero was done by the Emperor or Malcador in a fit of anger. Let's face it: Russ was already pretty well twerked at Magnus. Sending him to clap the Cyclops in irons and bring him home alive was probably not the wisest choice. Horus must've felt like Candlemas had come early when he heard about it.

 

As for Fulgrim playing both sides at the Trial...I was so unsurprised I didn't even notice until reading this thread. I got the distinct impression that Sanguinius was there because he supported the Librarius program, but that the reason Sanguinius and Fulgrim met Magnus upon arrival was as an escort, to reassure/check his temperature, and report back to the Emperor/Malcador/Valdor on whether they thought there'd be trouble or not. Fulgrim wasn't under the influence as yet, but that wouldn't stop him from playing politics. And while he may have personally thought of psykers as "imperfect" (particularly if he linked mass employment of psykers to the fleshchange troubles Magnus had early on--let's remember that both these primarchs had troubles early on with low numbers, and I'd imagine Fulgrim never wanted to go back to that situation), he might have seen the merits of having a gengineered psyker cadre within the Imperium. Heck, this would also build the sort of pre-decisional open-mindedness that later on led him to accept Bile's ideas of modifying the geneseed, and including xenos genetic material.

 

The Typhus contradictions in the texts trouble me, but could easily be explained away. How early on was Mortarion found by the Emperor? If he was one of the later primarchs, it is entirely possible that the Librarius was set up before Mortarion took leadership of the Dusk Raiders, and that Typhus was in fact a Librarian until that time, but with the finding of Mortarion, an intra-legion version of the Edict was enacted. That would likely hammer out any potential fluffholes there.

[Kol Saresk]

There's one problem with the theory; We're assuming the Custodes and the Sisters were aware of the Rune Priests, or rather were aware that they were still using their powers. If anything, from First Heretic we should know that the Custodes are blinded by their loyalty and if we go by The Voice, the Sisters aren't exactly the brightest pack of lightbulbs either. So it is still a Schrodinger's Cat in that, until something is confirmed that the Custodes were actually aware of the Rune Priests, or their nature, it's still suspect.

 

I mean, there were Custodes who assisted Lorgar in his Pilgrimage, but I am positive that we all agree that they were unaware of its religious nature and that if they had known what was actually going on, they would have never participated and reported it back to the Emperor, not that their co-location with the Word Bearers actually gives justification to the Word Bearers actions. Of course, I imagine the next argument would be "Well the Wolves were loyal so it's different." but I can already name one Primarch who is going against Imperial Edicts in the name of loyalty to the Emperor so I think it is best if we leave it at "We won't know for sure until something concrete comes out."

[Sviox]

The way I see this is that the big E merely stopped the librarium project, i.e. the organized training to use psychic powers and gather of arcane knowledge. SW never actually started their own branch of that project, but rather only used individual persons with innate psychic abilities (as opposed to learning them by studying the dark arts). The use of warp 'talents' was still allowed in traditional ways, like astropaths and navigators (and maybe even rune priests).