it can't be left alone. It needs support before, it needs development after, the figure has to reappear once, or twice, or three times. . ..
But I've had an interesting twist. A character showed up. He proved more important than he looked.
Indeed, I've concluded that he is behind the magic that causes a lot of trouble for four characters. He vanishes without ever appearing on stage.
But it seems to cry out for a sequel. Several sequels, tracing how the magic is working and affecting things.
It was simpler when the causes were off-stage and didn't raise questions.