Zombies were terrifying, with their high infection rate, and the virus with no cure. Survivors who had not experienced fighting with them would feel the crippling fear, and did not dare face them.

"Let the workers retreat!" Li Guang waved his hands and ordered.

With that, the 30,000 survivors quickly made their way back.

The vast sea of zombies continued to shamble forwards, in a short while, they got closer to Ning Yue Gorge.

The many traps and structures laid by the survivors began to exhibit their usefulness.

As the zombies continued to march on, all of a sudden, there was a split of the ground, as a trench of about 3m-deep and 20m-wide appeared. Many zombies fell into it, and the zombies behind them followed after, trampling those beneath into meat paste.

The zombies had no intelligence, just a simple trap like this was extremely effective.

The survivors had prepared this huge pit, which could easily take care of at least thousands of zombies, which would be trampled upon b