SHIVER

Shiver unsheathes her sword and steps forward, willfully dispelling the invisibility on her. Despite the fact that she says she doesnt like the common language, she uses it for this time, as she addresses the people standing around.

Attention humans, we are the rightful owners of this town by virtue of this piece of paper. Tell us what is going on now, and be quick about it.

(1d20+22)[28] Diplomacy

For her part, Shake just moves up and looks menacing, also dispelling her invisibility but lets her sister try her talky-talky stuff first

(1d20+37)[51] Intimidate