Upon hearing Arthur talk to her, Lissandra snapped out of her daze and turned her head toward Arthur, who was looking at her with a cold and reproaching look, after all, it was partially her fault that these black clothed people came here with Robin and from their look and aura, they certainly didn't come looking for peace.*In fact, just by the fact that the old man used one of his skill to damage the bone dragon, Arthur had already considered him as an enemy that must be eliminated, the question was, how would he kill it.
Since Lissadndara is considered their godly figure and she can easily command them, it would be the best choice to let her take care of things. Albeit becoming a Mortal, Arthur thought none of them would dare to oppose her or even raise his tone or mock her, their worship was not for show and they obeyed her orders letter by letter.