Yes and no.
If you're attuned to the realm in question, you don't suffer warping (Corebook p168), so we're safe from that.
On the other hand, our clothes and the environment aren't, so any place with an aura higher than 5 will probably be far from normal, even if we discard awakened trees and such. For that reason, I'm not sure the magi will feel comfortable living in such an aura, as it may bring about as much trouble as what it's worth (story hooks)
This should go even faster than this.
Cygna can quickly spot potential sites from the air, at least in terms of mundane ressources. Once that's done, all we have to do is travel by foot there and investigate some more.
Really, we are lucky: Cygna saves us an awful lot of time in all things (and her animal ken will probably be a boon), viscaria will be priceless to establish a home and mundane ressources (she can do steel!!! this is unvaluable!!!) and Hiems can spont a lot of spells, hopefully with ring/circle parameters.
Yup, that's what they are (if viscaria comes along hiems) doing right now, while cygna is, as far as I'm aware, scouting the island from above.
Hiems doesn't care at all about this, unless it gives him more work, so he'll say nothing.
No
At least Hiems can help with that.
We'll need to find a hard surface, such as stone. Then, if someone (viscaria, probably) can engrave an indestructible circle (so as it is not destroyed by some random animal) into it (possibly with PeTe), he'll be able to create the following enchantments:
Using ceremonial casting and Life-Linked Spont Magic, he'll try to create the following enchantments:
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a "Circle of Eternal Fire". He'll do this at some distance from his sodales, in case he botches:
CrIg 15
Base 4 (fire doing +5 dam), touch +1, circle +2, ring +0
This circle contains a fire that burns as long as the cirle persists
Cr 5 + Ig 6 + Sta 2 + Aura 3 (assuming the "minimum") + 2 Artes Liberales + 2 Philosophiae = 20 - 3 summer (It is summer here, isn't it? Or do I count winter?) = 17 + 1d10=1 woot!, 1d10=2 oh = 21/2 = 10. Spending 1 more fatigue gets it to 15 -
a "Circle of Stomacal Purification"
PeCo 15
Base 4 (between superficial damage, which could be appropriate, since it destroys hair, and destroy a corpse. I'm giving myself a magnitud of safety vs the GM ), +1touch, + 2 circle, +0 ring
This circle enchantment destroys any shit into it. This is our latrines ^^
Pe 10 + Co 5 + Sta 2 + Aura 3 (assuming the "minimum") + 2 Artes Liberales + 2 Philosophiae = 24 - 3 summer (same as before) = 21 + 1d10=9 = 30. Woot! I spont this without any additonnal fatigue!
We can set up a chair above it, and here we go!!!
I'd suggest we use similar methods as much as possible, since it'll save us a lot of potential botches. We should be able to engrave a circle in a large enough stone we'll dump in the ocean to catch up fish. Maybe the same thing with land animals!!!
Hiems at least will limit his casting to the maximum, save for formulaics he can cast without stress (such as his Warm Aliments and Wizard's Leap spells, which he's the most susceptible to use).
Hiems second sight comes from free due to his faerie blood, like viscaria's.
So they both can see in the dark
(more later)