My guess is that a lot of the ideas Alratan and others have had for "Mathilde seeking out information on how to secure liminal realms" will be encapsulated within the AP spent on the retry. "Hit your books and go ask some people who might have relevant info before trying again" seems like an obvious sort of thing for Mathilde to do, and the action of actually compressing the AV doesn't seem like it takes very long, so she has room in the schedule that the AP represents.
My chief concern is the fact that Boney said Mathilde would ideally want the Room of Calamity available for this; though "the middle of nowhere and space to run away" would also work, I just feel itchy about doing this without being able to slap the oh shit button. Gambler on it seems smart.
As much as saying so puts an opportunity cost in the way of something I really want to do...
Honestly, I can still see this one going either way,
I can see it being something so simple that it might have made itself apparent to Mathilde with just a lucky role but even so, research in this quest tends to take a lot of investment. I can see why a lot of thoughts on the matter is that such an action would be largely composed of going over every use of a liminal realm Mathilde can find just because of how many places there are to look. Of which there's quite a few.
Laurelorn's populace and it's Grey Lords in particular, The Hedge and its Folk, The Forest of Shadows, The Grey College, Algard, every work writings on liminal realms and magics that deal with the border of reality, what little the Gunnars and Dwarves have entrusted us with... (Grey and Hedgefolk stuff coming up often enough that I'm curious if the coin of the Father could help both from Aksel on the Forest of Shadows, the Hedge and the role of the two, assuming any difference, in the magic of the Hedgefolk and also and from those Grey Magister Lords a la Walther Kupfer, who also acknowledge Halétha.)
...That being said, just from that list, I suspect the most common answer to "How do you protect a liminal realm?" could be something like "Put something intelligent and aware in charge of it." Ancestor gods, forest spirits, the goddess Halétha... Even the souls of a very mortal organization that simply uses it in bulk.
The latter would even help explain Vlag to a degree: If the souls of some sixteen- to twenty-thousand Dawi were maintaining the bubble of realness by locally outweighing the Chaos without.
Well, speculation aside, the point remains that there's a lot of potential advice to seek on the matter. Especially if Mathilde ends up taking Kragg's words from last update into advisement, and goes about making sure she has a solid grasp on the theory before mucking about with the practicals. At the very least it limits the amount of literal and metaphysical real estate Mathilde is tanking the value of by setting off magical gunfire and
artisinal accidents near.
