Boom!
The sword energy lashed out in a streak of golden flame, hacking fiercely into the stone wall. However, the great hall seemed to have been built from some unknown material—the blade that could destroy mountains and seas did not even make a dent on the wall.
Gu Yu was not surprised at all. This Great Hall of Skills of Lüshan was said to be operated by Xu Xun, and refined instrument of the renowned Celestial Master of his time could only be out of the ordinary. Gu Yu was not planning to destroy the palace, either. He only wanted the thing hiding deep inside this place to open up a passageway for him.
Hence, he activated his energy, and raised his sword again.
Boom!
