As the zombies got closer and closer, Huo Zhongting and Huo Shen finally learned through the distant sight that the reason why the zombies had become so slow was the weather.
Although the zombies are already dead, the speed of their bodies is still affected by the temperature.
The higher the temperature, the faster their movement speed. After all, their blood is in a liquid state at this time. On the contrary, the lower the temperature, the blood in their whole body is in a solid state.