From the introduction:
The Emperor assumes a position of appropriate authority. The Explorer approaches the Emperor. If playing with a small group, all players except the Emperor and Scribe are Explorers. The Emperor can address the Explorers collectively or singly.
The Emperor intones, “Welcome home from your travels, Explorer! Tell me about the lands you visited.” The Emperor chooses a Topic from the list and asks the Explorer a question about it.
This unusual game uses multiple game masters and the other players are engaged as a sort of troupe.