Song Jian had spent an entire morning in the stone tower before he walked out, his face filled with shock.
From the outside, the tower appeared to be only a few hundred square meters, but inside it employed a divine art similar to a space spell. Just the first floor, which held some of the less important documents, covered nearly ten acres. There were over ten thousand books, with historical records that could be traced back a hundred thousand years—a feat unimaginable in the real world.
