Shen Fei frowned at this. The appearance of a Black Dragon was unexpected. No wonder there was a lightning rod here.
Then, the Black Dragon awoke and stuck its head out. Its eyes were scarlet and filled with ruthlessness as it stared at Li Ruoying and the others. It seemed that they had to defeat the Black Dragon before they could think of a way to retrieve the lightning rod.
Suddenly, the Black Dragon went berserk, and its huge tail swept out with a strong wind. Its power was astonishing; wherever the tail passed, the air would distort. Rubble soon fell onto the floor as though the sky was falling.
Li Ruoying's brows were tightly knitted, and her eyes revealed a serious look. She raised her hand, and a beautiful crystal blue light pattern bloomed from her fingertips.
"Congealing Star Technique!"
