I've played around with the idea of Agni as a more central spirit though I've not come to a firm decision.
I mean, at the very least they'd revere the Sun considering how integral it is to Firebending.
"You rise with the Moon. I rise with the Sun."
And the fact that the solar eclipse flat out shuts down any and all firebending along with the Great/Sozin's Comet amplifying their power.
Honestly I can see Astronomy being a favored science amoung even the more 'primitive' firebenders
The Fire Lord has stood at the center of this political scene for as long as there has been a Fire Nation, their strength assured by the blessed rites of Agni Kai, any weakling or fool who might seek to leash the nation to their ambitions deposed by the holy fire of an aspirant more fitting.
IE ambition and drive is inherent to the Children of Fire and the Fire Lord is the guy with the ban hammer whacking them whenever they act stupid/overreach.
there has been little interest in such dangerous investigations under the reign of Ozai.
I imagine a lot of formerly 'safe' things became dangerous under Ozai's reign.
the Crown Princess' dismissal of the servants ensuring that there would at least be some privacy in the hours to come.
Azula helped. Not something you can normally say.
the boy proved to have something of a backbone
That is most certainly one thing Zuko never lacked.
I mean, given his past, the short few years between his son's death and Zuko's scarring seem likely.
We the readers know that, but the Fire Nation has no idea when he (and some other high ranking individuals from the FN to boot) joined this secret organization with (mostly) unknown goals and intentions (other than siding with the Avatar and acting against the Fire Nation).
[X] Lord and Lady Yamaha reacted poorly to the news that a 'half-breed' would be taking the helm, both of them erupting with anger and shouting invectives. The Fire Lord, suitably incensed by the situation, shouted them down in kind before finally ordering them tossed out of the palace by the Royal Procession, the married couple having to be hauled out of the council chambers by the masked firebenders as they hurled abuse at the new sovereign. While their removal from the council meetings will certainly make things calmer, Namiko can't help but be concerned about what they'll get up to outside of it…
Nobody is going to be able to get anything done with those two gumming up the works.
[X] Minister Amari remained in his chair, the ancient general seemingly struck by a bout of tiredness as he gazed about the room almost morosely. If she hadn't known any better, the man would have almost appeared lost, the once venerable colossus of war reduced to a relic of an age since passed, one that had endured beyond the things that gave it purpose.
While I can understand the appeal for Shu in order to prep the economy, considering the sheer level of influence Amari has over the military we need him on board.