"Ernst, I've thought of a question. Recently, during the migration to Chad, I wanted to know when you plan to extend the North Railway to the Great Lakes Region, or perhaps construct a massive east-west railway," Prince Karl inquired.
This is related to Prince Karl's work, as he's primarily responsible for transporting immigrants to the Sigmaringen Colony in Chad, so he needs to utilize the North Railway.
Although the North Railway is long, its length is limited, and it halts abruptly once it reaches the Great Lake (Lake Victoria) region.
From Chad to Mombasa, only half the distance is covered, and the remaining half must rely on pedestrian or animal-drawn transport on land.
This is understandably arduous, and that's just the human migration. If you include household items, firearms, and other colonial necessities, the long trek becomes particularly vexing; thus, Prince Karl raised the issue of the railway with Ernst.
