Eisenhilde is of the opinion that there can be many deities with overlapping or identical domains, she just happens to like her own more and can be somewhat rude about it. So,
“I am dedicating this worm’s pathetic life to Hel—a true goddess of death.”
After all, if there are many gods, why wouldn't those people over there genuinely have different ones than you? Especially if they can all use magic in their gods' name.
Cernya most definitely does not currently know how to heal anyone, and so while she's far too proud to admit it she's grateful that she's getting some dedicated instruction in how to cast spells.
After carefully listening to Astrid's proposal, Mireille takes several seconds to think. Then she replies:
"If, and only if, you can get a few more combat-tested people to join, I will join. I don't want to go into a fight with Marla fewer than five on one. I'll see if I can tip Arastine in your favor, though."
Later, Arastine is asked by Mireille about her answer to Astrid's question. At the time, she'd simply said she'd need some time to consider.
"Like I told Astrid, I'm still thinking about it. I don't want to act impulsively, especially with something that has this much possibility to go wrong."
Mireille tries to think of something to say, but after a few seconds she just nods.
Millie, being a rural peasant, is quite ignorant of most things royalty, including the fact that they can be deposed, or that sometimes they should be deposed. This leads her to meekly, almost inaudibly, agree to Astrid's request. She immediately goes back to sadly hugging her axe and staring at the floor, though, so she probably won't be much actual help, and her main combat utility may be absorbing a lethal spell.
Hathus tilts his head when Astrid explains her proposal, and has an immediate reply.
"Do you really think that Toxin will accept you as Marla's replacement? She must have some reason to choose Marla as one of her students, and I doubt she'd be particularly pleased if an upstart princess and her friends killed one of her better performing students."
Seeing the angry look on Astrid's face, he attempts to pacify her a bit.
"No offense meant, of course. I simply believe that we'd be better off convincing Marla that an army with something to fight for, for example, our freedom, fights better than one with nothing to gain."
He half-smiles at her, then goes back to making his arrows.
