C625 Nocturnal village
Chen Ling and Ye Yu travelled northwards, starting from the Ancient Blue Region. They passed by the cities in Qingxian City, and three days later, they arrived at the border of Qi Nation and Hutuo River.
Since the Yan Nation had not established a large scale Great Wall, but only a Great Wall of Water Difficulties, preventing the enemy forces of Zhao and Qi, the Yan Nation