Travels in Arion is the atlas of the city of Arion seen with the eyes of a foreigner visiting it (and having meals in it...) It is not too in-depth, doesn't tell you too many secrets or details, but it is a nice basis for the Director to build up plenty of city adventures. A very nice resource! However, doesn't have the inspiration and the depth of Blacksand, that is the most similar production by the same editor and set in the same world.