All the traps

After Xu Cheng took a deep breath, he laid on the ground and was covered in sweat.

After a long time, he sat up straight and sat on the ground. He looked around and then at the entrance of the cave.

Then, he looked at the footprints.

She was in a daze.

He crawled over to the step seal again, squatted down, and carefully observed it. He tried to see through the profoundness of this step seal with his common sense and what he saw.

In short, he knew from the test just now that these marks couldn't be guessed randomly and there must be a pattern.

But what was the principle behind its setting?

Xu Cheng wanted to try again, so he used his own speed to quickly complete all nine steps from the first one.

The result was the same as before. He triggered a mechanism, but he dodged quickly and easily dodged it without using the tortoiseshell.

Xu Cheng walked back and continued to try.

He had gambled on the first step.