I blink, quite confused for a moment by what she means. They're trees, obviously, and if they were people before... "everyone knows that formic matrices are only so stable, they degrade over time if an alternate form is held too long until the matrix warps and the new form becomes default- which takes a GREAT deal of sustained magical energies and effort to achieve, usually some ritual or some sort of heavily enchanted object to hold the enchantment stable." I explain, my tone somewhat pedagogical. "It's why such workings as baleful polymorph are short lived and expire with a lapse in concentration on part of the caster."
That... was almost comforting. Naethra used to like listening to the elven wizards debate the fine points of theoretical spellcraft. She couldn't work any of the magic herself, but sometimes they had her keep notes on lectures or meetings. The humie was a specialist, and while she knew the fine points of that knowledge were beyond her grasp, she could follow the general thrust of this...
"Lucious, you're right, but I suspect you're arriving at the wrong conclusion," for the moment, she decided not to mention the spells of the elven mages of Sienhelm. Humie spellcraft lagged tragically behind, and that information didn't really seem pertinent to the point she wanted to make.
"Yes, permanent transformations require more energy and articulation than most magic. And we have all seen, first hand, that those are going on here. If you follow the logic, it isn't impossible so much as it requires a tremendously dangerous amount of magic. That is practically
everywhere here."
She locked her eyes with the human wizard. "Tell me, do you think this is going to wear off any time soon?" she asked, fingering some of the leafy vines of her hair with one green hand. Her tone made the question utterly rhetorical.