Yes, I was just thinking about a solution like a transfer hub (i.e., a portal)..
I'll add it when I'm creating the campaign and connecting the maps).
The balance and scripts are definitely all sorted out now.

I'll also have to come up with reasons for another level reduction for Koly (and even for Markel – in the original campaign, he's already level 30). Because when moving on to subsequent missions, there will simply be nowhere to grow. And I have plans to create a siege of Irollan, a confrontation between Nicholas and Railag (revenge is necessary!), and many other ideas..:smile13:

Added 48 minutes later
Next to the ghosts, you can create/build a one-way portal during the game, connected to the portal in front of the castle. Then Duncan will look there. Unless you prevent him from going there (the ghosts don't want to serve humans!).
You can also swap the archers with the bandits with the book.