Their teeth grind, because he did promise, but also they need to see this through. They stop when he does, the distance between them a caution they raise their voice over.

"I am not happy with the way you treat your sons," they open with. This is as much as a test of his response as an accusation. "Distinctly so. Therefore I am extending the warning - to them as well."

Their hand rests on the butt of the stake sheathed through their belt, but they don't draw it. It's simply making a point, like the edgelord they are and like they could really hurt him with it (even determination magic might not have an effect).

"Do not go near them."