Paired diplomatic rooms let separated groups see, hear, and lightly touch one another without sharing a vulnerable physical location.
The crawler ballroom occupies the castle's fourth floor, while the hunter equivalent lies on the second. They appear identical and superimpose occupants through a diplomatic effect, though each group remains physically in its own protected room.
Samantha says goodwill ballrooms are common for ambassadors and dignitaries because they permit social contact without assassination. A light touch is possible despite physical separation. She first met her king in such a room and had to wait until after the event for unrestricted contact.
A lavish ballroom magically overlaid with a distant twin, causing guests from both rooms to appear together.
The room enforces the party's no-violence premise while allowing convincing cross-faction interaction.