After the Catastrophe, every rule in the world was rewritten. In the Age of Black Iron, steel, iron, steam engines and fighting force became the crux in which human beings depended on to survive. A commoner boy by the name Zhang Tie was selected by the gods of fortune and was gifted a small tree which could constantly produce various marvelous fruits. At the same time, Zhang Tie was thrown into the flames of war, a three-hundred-year war between humans and demons on the vacant continent. Using crystals to tap into the potentials of the human body, one must cultivate to become stronger. The thrilling legends of mysterious clans, secrets of Oriental fantasies, numerous treasures and legacies in the underground world — All in the Castle of Black Iron! Written by Drunk Tiger, this novel is a prime example of fantasy steampunk. Let us journey through the world of limitless possibilities and inventions together! ------ **Warning: This novel contains mature content**
Unlike water, it was bone-chilling and was about minus 100 Celcius degrees. Weirdly, it was not frozen; instead, it was still flowing. Meanwhile, the water could heavily erode one's protective battle qi. Therefore, Zhang Tie had to fix his protective battle qi while swimming.
The tunnel inside the pond was as complex as a max. It was connected to many other ponds of different styles and sizes. Zhang Tie could see one pond in each a few minutes. There were odd black sands at the bottoms of those ponds which appeared to be used to plant something. Additionally, Zhang Tie saw some withered and broken roots which were thicker than 3 m in those black sands. As they had been there for so many years, they immediately turned into powders floating in the water after being lightly touched by hand.