Ling Xiao nodded, "I'm not sure how large the range of the inner world is, but as the 'duplicate' of the surface world, the inner world definitely has boundaries. As long as we find the boundary, we'll have a way to leave."
"Since we just entered this 'inner world' through the ventilation ducts, can't we just backtrack and return to the 'surface world'?" Jiang Yu asked.
"The passage connecting the inner world and the surface world is constantly changing," Ling Xiao shook his head, "The entrance and exit were in the ventilation ducts just now, but it's no longer there."
"This change... is mentioned in those comic books?"
"No, it's something I felt," Ling Xiao closed his eyes and took a deep breath, "I can feel the space around me is like air or water, flowing slowly and chaotically... It's dynamic, constantly changing, but in our conventional senses, it continues to maintain a relatively stable state."
