You may resent and speak against Austin's wild ambitions, claiming he's a treacherous minister and a rebel, but you can't fail to express yourself. After all, there are so many people present, the new ruler might not remember who proclaimed their loyalty, but will definitely remember who didn't.
Even if he doesn't remember, there are plenty of snitches ready to report.
"Before the Queen returns, no one is permitted to leave or to make contact with the outside world!" Austin threatened with a dark expression.
"We will follow your command."
"..."
Austin looked emotionlessly at this group of vermin, wishing he could draw Twilight Deadlock and finish them all off, as he imperceptibly swelled with arrogance and began to comprehend the Queen's difficulties.
Centralize power!
We must centralize power!
Otherwise, the nation will eventually perish!
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Magical Department Headquarters, East District Side Hall.