In my first book, the characters travel from south to north along Khriza, their homeland. But in the sequels, certain characters (and eventually all the characters) travel outside Khriza. How do I handle cities? Since they aren't discovering the cities for the first time (they're not explorers or anything), how do I handle cities that pop up on sequel maps that went unmentioned in the first book? Should I just plot out every city in my world? That seems like it will clutter the map a bit. Though, my dragons aren't ones to put their cities all together like modern humans. Cities are usually about as far apart as one can fly to them, sometimes closer in certain cases.