Chapter 2128: The Pit

At that moment, a large number of zombie clones were gathered in the fourth basement of the research institute.

For protective purposes, the floor was constructed partly of metal, with reinforced concrete highly condensed below.

After more than an hour of digging, Fang Heng heard a thud.

He turned around and saw that the zombie team had finally dug a hole in the ground.

Done!

Fang Heng walked to the front of the pit and took a look.

The bottom of the hole was directly connected to the sewer.

This was only the first step. After entering the sewer, he still needed to open up two more underground sewers that connected to the outside world.

The good news was that so far, neither the Federation army team nor the guards from OmniTech Company have successfully invaded the lower levels of the research institute. They were still confined to the first level and were slowly clearing out the Licker groups blocking their path along the way.