I'm afraid I don't know the exact mechanics behind it...but it's real enough.
[Unlike others, he can see the trapped souls. It was only partly luck that brought him to where he could save Aang...it was more he heard the souls of the angels screaming and begging not to take another life]
Mithos kidnapped and transformed many castle residents. It was done in a way that no one really noticed what was going on. When he had enough between that and the alliances he had made with residents seeking ill will on others...he attacked.
We barely had any warning....while there were rumors before, most of us had no idea what was going on. And even if we did, we couldn't bring ourselves to attack the angels that had the faces of our loved ones.
The castle fell. Every person they seized were transformed into angels to add to his army.
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[Unlike others, he can see the trapped souls. It was only partly luck that brought him to where he could save Aang...it was more he heard the souls of the angels screaming and begging not to take another life]
Mithos kidnapped and transformed many castle residents. It was done in a way that no one really noticed what was going on. When he had enough between that and the alliances he had made with residents seeking ill will on others...he attacked.
We barely had any warning....while there were rumors before, most of us had no idea what was going on. And even if we did, we couldn't bring ourselves to attack the angels that had the faces of our loved ones.
The castle fell. Every person they seized were transformed into angels to add to his army.