Having collected the items, Lin Yucha suddenly said, "Master, didn't we say we wanted to go down and take a look? Shall we go now?" It was a suggestion made earlier and they had nothing else to do at the moment anyway.
"Of course, we should take a look. It's rare to see such a large cave, and even rarer to find so many Sand Snakes inside. I think there must be something special below, let's go search for it."
Du You and the two sisters quickly found an entrance, which Beetles had burrowed out.
Although Du You couldn't figure out the layout of the underground cave, with Spiritual Perception, he could roughly sense all of the surroundings. If all else failed, he could always use Instantaneous Movement to travel layer by layer back to the surface. So, the worry of getting lost was not an issue for him.