C288 Father and Daughter

After about 40 minutes, the sky had turned dark.

"Tututututu …"

A series of sounds unique to single-bar engines could be heard, loud and clear in the darkness of the night.

"Old man, there are quite a few zombies in the factory. Should we move to another place?"

Zhang Degui drove his farm tractor under the cover of the night, slowly approaching the already messy factory