Within the Iron Wall Castle, Jing Yan immediately sensed the dark energy permeating from outside.
"Not good!"
"The Sky Demon Clan is attacking the Iron Wall Castle!"
Jing Yan's figure flickered and he instantly left his room.
Meanwhile, above the Iron Wall Castle, the black light from the black vortex was already striking the Guardian Array of the Iron Wall Castle. The entire castle's formation began to operate. As light halos circulated, layers of barriers gathered, attempting to fend off the descending black light from the sky.
"What a terrifying aura!"
"This... This power seems to surpass even Ruchen Venerable's strength. Could it be that the Demon King of the Sky Demon Clan has descended and is attacking the Iron Wall Castle?" Jing Yan's eyes narrowed as he looked up at the sky.
General Shi Tai followed closely behind Jing Yan, flying out of a building, his face filled with shock as he gazed at the black light in the sky.
"Crack! Crack!"
