Before they arrived at Xuanyuan Fortress, the north wind and snow had grown stronger while great drifts of snow had blown towards them...
Knights were not afraid of extreme weather. Such weather, although being bad, didn't affect knights at all, not to mention Zhang Tie.
In the sky, Zhang Tie felt a bit gloomy when he saw the ground and the distant Weishui River through strong wind and snow. Bad weather didn't affect knights; however, it could severely affect the ordinary ground forces; especially when Weishui was not far from being frozen in this first heavy snow at the advent of winter.
The three people moved faster than the airplane. Only after a short while, they had already finished the travel of about 180 miles and seen the giant Xuanyuan Fortress in front of them.