About half the guests seem to be intent on leaving immediately. Possibly because of the fire. Others are still mingling and partaking of the Don's hospitality. Most of the servants remain, fetching drinks or food as required. Many of the guards seem to have disappeared, though some remain.
Vanderberg asks a servant, very politely for some music, and offers his arm to the lady he escorted. They will take a turn and return to their conversation.
He will trust his First Mate to look after Alida.