Winston had made markings to indicate where the wall was to be built. Following the scent markings, the males piled up a line of city walls with huge rocks, then drizzled the mixed mud mortar to glue them together.
There were two types of mud mortar—one was the special stones commonly seen in the cracks of the stone mountain, while the other was the clay found on riverbeds.
The stones were pounded and ground into powder, then mixed with clay. After the mixture dried, it would turn into a solid object not much different from a rock, and it achieved similar results to the cement used in the modern age. However, the mud mortar was sturdier and denser.
This task was given to Alva as he could fly. While the hundreds of beastmen built the wall, he only had to drizzle the mud mortar with them, which was considered quite an easy task.