just your shadow on your floor

[Karlach Cliffgate]

You are still following, every single step, making sure that she isn't quite out of reach but still maintaining a safe distance. Looking over your shoulder, at the two people you are talking about - Astarion getting closer while your eyebrow shoots up. Now it dawns on you what Zenisse is talking about.
You have seen Imza fight, and know that sometimes her magic developes way more potential in the heat of a moment, covering more ground than it should have. And for a moment, you think about how she looks like how you feel whenever Zenisse comes a bit too close; the heat of your own skin, flames dancing on your body. Only that there is nothing to see - but somehow, you are waiting for her magic to burst.
It doesn't come.
(Yet.)

Karlach

Are we going to steal her diary and read it as a good night's story?

Your tone is amused, but you also know that Zenisse isn't someone who would so easily do something like that. She is honourable, a kind sould, sometimes a tad of mischief in her eyes glistening - but not someone to steal a private treasure and read it for fun.
It does sound like fun, though.