C110 Unholy Heart Method(2)

As they gathered together, they found that each one of them had found some ancient books. The old books were covered in dust, and the paper itself was slightly damaged. Clearly, it was not as good as the book in the metal box.

Feng Ling Xu hurriedly said, "Don't read it yet. These few books need to be repaired before you can continue flipping through them. Otherwise