These skeletons, under the foremen's command, carved runes on the walls of the Funeral Bell Fortress.
A large batch of solvent, smelted from death energy metal and some demon materials, was filled into these giant runes carved by the skeletons.
As the defensive array runes on the walls grew in number, the defense of the Funeral Bell Fortress became stronger, and its functions increased.
The work of these skeletons was nonstop, day and night.
Even if a demon rushed out, as long as it wasn't killed, it would continue to work tirelessly inside.
This deeply moved Fang Zhou.
It is precisely thanks to the selfless dedication of the skeletons, not counting life or death, that the Blood War Furnace and the Undead civilization have their current glory.
With the help of the skeletons, some arrow towers were even built behind the fortress.
Some death energy giant crossbows transported from Tusk City were placed on them, causing great trouble for the demons rushing out.
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