An iron tower rose straight from the ground, soaring into the clouds like a sharp sword.
Its tip vanished into the clouds, while the violently churning black fog ahead could be seen with perfect clarity.
The black fog seemed to have a life of its own. As it writhed and time passed, it continuously devoured everything around it.
A tall figure gazed ahead, his expression turning solemn. In a deep voice, he said, "The Black Demon Fog has been expanding faster and faster these past few days. It won't be long before it strikes all of Cangyun Mountain again."
"Have all the formations that needed repairs been restored?"
Hearing Iron Mad Daoist's question, a cultivator immediately replied, "Reporting to the Protector, most of the hundreds of formations that were damaged have already been repaired. Several formation cultivators are still working around the clock, doing their best to repair all the formations within three days."
"Excellent."
Iron Mad Daoist nodded, then added, "The stronghold's defenses must also be tightened. In addition, send out some scouts to investigate the movements of the mutants along the edge of the Black Demon Fog."
"If they show any sign of action, the intelligence must be sent back immediately."
"Yes, Protector."
Soon, several cultivators under Iron Mad Daoist's command sprang into action and rapidly began making all the arrangements.
The five Protectors in the stronghold took turns standing guard at regular intervals. It was Iron Mad Daoist's turn now, and he was responsible for the stronghold's internal and external security.
"The last time the Black Demon Fog expanded so violently was decades ago. The number of mutants that broke in back then was terrifying, and the entire stronghold nearly fell."
"I hope these Fallen Ones will have enough sense this time and won't act rashly."
Iron