Communication

My thinking of yesterday didn't leave me alone, and while I lay wide-awake in my bed last night, I thought about possibilities how the "wizards" in my story might communicate, and I think i finally figured it out.
This will of course need some more consideration and I will have to work out the exact possibilities and limits of this method, but it's a start.

And at least three new scenes started to develop, making up for yesterday's lack of progress.