C287 World saving plan

On the rocks of the cliff, there was a hint of black.

That black color was very special. It was as if there were specks of white starlight gently shining within it, making it very eye-catching.

Zhang Chao's breathing became hurried.

It wouldn't be strange if others didn't know this, because this was a type of refining material. Moreover, it wasn't an ordinary type, but the most ancient type