In the depths of Hell.

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Heroist

Thank you for the method. Turns out, it all fits in the console! I just entered all the videos in order and understood everything.

However, in the second video, some of the hero animations are not displayed for me.
And also - who were these heroes?
My guesses:
Mausoleum: Nicholas
Necropolis: Markel
Inferno: Biara (?)
Tower: Evil Tower, I forgot the name.
Castle: Kha-Belekh
And who is Fenya?!?! Or is it just that they are displayed like this for me because of mods, which is quite possible...

They tried to resurrect Markel - is this a prelude to the "More Alive Than the Living" map?
Alaric couldn't go to the King - the entire Empire was captured. Just a note.

And also - why did he save them all? The agreement was only about Alaric, right?

Thanks again.

I don't understand what you're talking about. Most likely, third-party mods are to blame; I don't see any other reasons. Alaric has nothing to do with it; it's all the same Loran...
He didn't save them; they all jumped out of the portal themselves before it was closed)

Added 1 minute ago
your guesses are correct, I just didn't try to include Alaric in the plot