Auto-translated
Guys, help me! I killed all the enemies except the red one. I don't know how to get to him and where to find the red key to the gate.
Where can I find the key and the tent?
New here? I'm Roha — want a quick tour?
I followed the same build as you, but 5, 6, and 7 were - magic, knowledge, and luck.
It's better not to take Chaos at all. Without Chaos, it's not that fun. Summoning with Darkness is more important, and three schools is clearly an overkill. Darkness, Summoning, Education, Logistics, and Sorcery are the optimal choices for the campaign.
magic, education, and logistics, among other things.
This. Only the logistics might not be available, and it's not clear if it's really needed, as it's a single-player game. Instead, you can take something for combat, like defense.
Defense with BDP and go through everything with 14 ghosts.
Logistics don't seem to be a strong suit for the Necromancers, but that's okay. Maybe Chaos will be useful there? I don't remember who and how we'll have to fight.