The Black Turtle's Barrier was a high-grade defensive Divine Ability. Not only was it the most treasured Divine Ability in the Black Turtle Sanctum, but it was also the number one defensive Divine Ability in the Fire Worship Sect!
As the number one defensive Divine Ability in the Fire Worship Sect, the Black Turtle's Barrier was very famous even in the Upper Province of the Dao Martial Saint Land.
Naturally, it was extremely difficult to successfully comprehend this Divine Ability.
Currently, there were not more than ten people in the Fire Worship Sect who had successfully comprehended the Divine Ability, the Black Turtle's Barrier.
Due to this reason, the Four Symbols Sanctum's disciples were greatly shocked when they saw Sun De casting the Divine Ability, the Black Turtle's Barrier!
Once news of this spread, it would definitely cause an uproar in the Four Symbols Sanctums!