Kang Haijiao followed a path for more than ten days and then encountered this type of "bad luck."
One day as he walked, he suddenly discovered in the dark a stone wall blocking his way; just a very narrow crack at the bottom of the wall allowed water to escape.
The frustrated Kang Haijiao was about to turn back when, somewhat reluctantly, he punched the stone wall, not expecting that his strike, perhaps triggering some mechanism... made the thick stone wall rotate like a revolving door.
The moment the blinding sunlight outside the wall shone into the pitch-black channel, Kang Haijiao, who hadn't seen light in nearly two months, almost went blind. Thankfully, the wall quickly sealed the channel again, blocking the sunlight and allowing Kang Haijiao, who was covering his face and kneeling on the ground, to catch his breath.
Later, when he "flipped" out from the stone wall and had restored his sight, he realized that he had unintentionally come to a cave midway up a cliff.
