Ning Cheng clenched his fists. In his opinion, the thing in Yi Jiufeng's box was the most useful. It was the sub-talisman of the Opening Heaven Talisman. How precious is something like the Open Sky Talisman? It can be said to be a treasure that created the world, and there is a sub-talisman of the Heaven-Opening Talisman here, which shows how extraordinary this Shadow Temple is....