Secunda tilted her head for a second, processing new information and relishing in the sensation of bitter anger burning her throat. She almost missed this adrenaline rush of pure, crystalline hatred against the uncaring universe, that jet drive that propelled her in her station in the first place. That being said, she was curious enough to ingest all the new inputs, not leaning into the emotional channel.

Sister's official mission implied that whoever tried murdering her had a baffling habit of making enemies out of Adepta. It was not easy to become a target for both Sororitas and Mechanicus and survive in the long term, the thing that the greatest Lord Administratum learned first-hand. 

Sister's personal search for "guidance" and "forgiveness" was... troubling, to say the least. It would inherently imply that she was being misguided and that she had done something to beg forgiveness for in the first place. Secunda made a mental note to check that deeper in a better time and place. That being said, November inadvertently vouched for Kora - neither recognition nor politeness of Skitarii were not something trivially won. At least Kora was a Sister, at least she was a veteran, at least she fought xeno-scum, and she performed at least to an admirable degree if November cared to remember it.

Speaking of recognition and politeness... The main differentiating factor between Skitarii Corps and the Tech Priesthood has always been the relationship with the unknown. Priesthood has always been a force attacking the unknown by slowly uncovering its true nature, sorting it between known, unknowable, and forbidden. Skitarii complemented them as a force defending against the unknown by swiftly turning it into some sort of molten slag. 

And Secunda, right now, just happened to be a thing unknown by and unpredicted for the Marshal. Fortunately, November was a tad bit smarter than her brethren, asking questions before going for the guns. Which is why she made it to her rank in the first place.

Finally, as Secunda collected her wits, she made specific note that at least three things came into her sanctum uninvited within the last hour. Apparently, she was not as smart, secretive and well-defended as Prima believed herself to be. Moron. No wonder she's dead.

"Marshal, this biotrash, unfortunately, is a vital cog in the plan designed by Archmagos Toros, evidenced by the currently propagating message in the noosphere. And I assume that you at least acknowledge my rights to execute her will, otherwise, I am surprised at still alive after deploying an infocyte bomb.", Secunda politely spread her hands. Skitarii had some pride in own lethality, and leaning onto that was never exactly a wrong thing. "Acting as an executor of her will, I would love to report an attack on Archmagos Toros assets, committed by a criminal wanted by Adepta Sororitas, who also happens to be a heretek and a personal affront to Omnissiah. We were just discussing exactly that with Sister Kota. Given that you are expected to be the force ensuring the security of Isohedron, we would love to forge out a cooperation in having this problem permanently solved."

Don't be an unknown factor. Fit yourself into some pre-determined shape in her robust operational parameters. Always paint her a clear target so that she won't herself try searching for things to murder away. Pray that you don't make it to the top of her list before re-securing the throne.