"I'll give it my all!" A resolute glint flashed in Mu Xue's eyes. Without further hesitation, her hands flew across the numeric keypad as she typed in the last password she could think of.

"drop--"

A crisp alarm sounded, and the metal cube suddenly trembled violently, red light flashed wildly, and a piercing alarm blared throughout the ruins.

"It worked?" A glimmer of hope ignited in Mu Xue's heart, but the next second, her face suddenly turned deathly pale.

The metal cube did not stop operating; instead, it emitted even more terrifying energy fluctuations, distorting the surrounding space. At the same time, a low roar came from deep within the building, like the howl of an ancient beast, sending chills down one's spine.

"Oh no!" Alarm bells rang in Mu Xue's mind. Before she could react, a powerful force sent her flying...

"Run! This place is dangerous..."

“…Run! This place is dangerous…” Mu Xue’s voice trailed off as she was flung away by an invisible force, crashing heavily into the wall behind her. The intense pain made her vision go black, and she almost fainted.

But she couldn't give up! Mu Xue gritted her teeth, enduring the excruciating pain as she struggled to stand up. Just then, a miracle happened.

The metal cube, which had been flashing wildly, suddenly went out as if the power had been cut off, and the piercing alarm stopped abruptly. The mechanical puppets that had been attacking menacingly froze in place, like puppets whose strings had been cut, before collapsing to the ground with dull thuds.

"It worked?!"

Before the joy of surviving the ordeal could even spread through everyone's hearts, an even more chilling sense of oppression, accompanied by a deep roar, came from the depths of the building. The sound seemed to come from an ancient behemoth, carrying a terrifying pressure that made everyone present feel a chill in their hearts.

What was that sound?

"Watch out! Something's coming!"

Despite the pain, Mu Xue struggled to her feet. "Everyone, be on high alert! Prepare for battle!"

Although she didn't know what she would face next, her intuition told her that greater danger was yet to come.

"Ning Yu..." Mu Xue's gaze swept across the battlefield, anxiously searching for Ning Yu's figure. "Ning Yu! Are you alright?"

"I'm fine." Ning Yu's voice came from not far away. "Xue, how are you? Are you hurt?"

"I'm fine, just a minor injury..." Before Mu Xue could finish speaking, a loud "boom" rang out, and the door deep inside the building burst open, revealing a huge black shadow in front of everyone.

Everyone held their breath, gripped their weapons tightly, and stared intently at the dark figure, preparing to face the impending challenge.

"Prepare……"