There were nine levels in the Scripture Tower and Ning Fan could enter any one of them arbitrarily. So far, there was only Lu Daochen who finished reading hundreds of thousands of ancient books in the tower. That was why he was also known as Master Lu.
There were 1079 demon characters where most of them are the easiest characters in the first level of the tower.
Starting from the second level of the tower, the number of characters recorded in each level decreased whereas the difficulty for learning each of the characters increased accordingly.
After arriving at the eighth level, Ning Fan had almost thumbed through 7000 demon characters that were recorded in the Demon Codex.
