This was a city beneath the water, enclosed by walls.
Northern Polar Sky City had not only an outer wall, but an inner wall as well. The ring-shaped waters between the two walls were like an enormous moat, guarding Northern Polar Sky City within.
Unlike most cities, this city was completely submerged. The various buildings looked more like decorations; the water within was the true dwelling place of the Water Race.
Thus, the fastest routes through Northern Polar Sky City were not hard stone roads, but waterways that ran in all directions.
Northern Polar Sky City was divided into many districts. Anyone crossing from one district to another had to undergo strict inspection. So long as Fang Yun revealed the token mark on the back of his hand, he passed through unimpeded.
Before long, Fang Yun crossed the inner wall and entered the waters between the inner and outer walls. He surfaced and looked into the distance.
Outside South Wing Gate stood a square barbican, but it had already been occupied by the Ancient Demons.
Unlike the battles elsewhere, the Ancient Demons here were defending, while the Water Race was attacking the walls.
Northern Polar Sky City's walls rose more than a hundred zhang above the water's surface, like an unbroken chain of mountain peaks, their surfaces covered in solid ice.
Countless Water Race Battle Souls swarmed out of the water like ants, using every possible method to scale the walls.
Water Demons such as octopuses and squids treated the walls as level ground, climbing swiftly. Fish Demons with fins found it difficult to climb directly, so they used demon arts to create upward-rushing reverse currents and rode those currents straight onto the walls.
At intervals, powerful members of the Water Race joined forces to create towering waves, carrying tens