C175 Organ Message

The green-clothed gongzi caught the reactions of the four of them and turned to look at Xuanyuan Yin, "How is the expansion point coming along?"

Xuanyuan Yin's face was indifferent as he replied simply, "The rough tunnels have been opened and more than half of the rooms have been dug out. We can start installing the large mechanisms and handle the rooms within three months