The chilling alarm echoed throughout Black Iron City. Su Yu, Feng Ming, Lei Leian, the Crown Princess, the Wooden Man, Jin Fuhua, Jiang Hai, Ouyang Nuo, Zhang Zhongmou, and the rest who were gathered for discussion in the great hall, all lifted their heads. Very soon, a large number of Black Iron Warriors emerged, all standing in strict formation. Following that, a chilling scream came from the front of Black Iron City.
The faces of Su Yu and the others changed slightly. They did not expect another enemy attack so soon. Had the support for the Black Dragon Giant City arrived so quickly? Or could it be other enemies?