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**
Zhang Tie couldn't wait to open the Living Beings and Communities Management Panel of the Castle of Black Iron. He selected the Micro-organisms Management Projects under Carbon-Based Living Beings and Communities Management Item and further checked the latest mutation and evolution process of yeast fluid.
The familiar semi-translucent dialogue box appeared in front of him. Besides that bottle with yeast fluid inside, there were several photo samples of the control groups.
The photo samples of the first comparative group were about the yeast individuals under microscopes before and after evolution and mutation.
Before mutation, the microorganisms looked as common as water drops or beans of oval or irregular round shapes. They were semi-translucent and different-sized. However, after mutation, they looked greatly different in shape. In Zhang Tie's eyes, the microorganisms after the mutation were like miniature gourds which looked pale emerald and brought one a sense of vitality.