Ooh, I like that idea! Does Artemis know there are other immune humans or would that come as a surprise to her?

Maybe the first time our MCs cross paths with the humans, they part ways just long enough for the humans to think Azdrei'in is alone. That's when they would come out to attack, but Artemis is close enough to the commotion that she notices and intervenes with her lie about his weapon, both to protect him and the group? Since Azdrei'in would kill them if he saw them as a threat. If Artemis could defuse the situation, it would keep anyone from dying.

The second time, the humans could come back with a plan. Maybe they think Azdrei'in has captured Artemis and is holding her against her will for some sort of malicious reason, so they think they're saving her by trapping him?