C3869 Prepare for Foundation Building

Although this Foundation Treasure looks like a book, and... there seems to be words on the cover of this book. However, the words were very blurry and looked very strange. Anyway, Lu Shan's eyes were wide open. He didn't recognize the words written on it.

In addition, he could not open the book at all. He could not even open the cover. It was just like a brick.

Actually, this was very normal