Those who fear darkness have never seen what light can do (слэш)

When Wu Xie was seven years old, he snuck away from his guardian during one of the digs that Sanshu took him to. Only things went wrong, the entrance collapsed, and it took a week to dig the child out from the near collapsed tomb.
They expected a body. They prayed that the child had somehow survived, but seven days without food or water for an adult would have been deadly, a child had no chances of survival at all.
They found Wu Xie deep in the tomb, sleeping on his little backpack. He was warm and healthy, confused at why the adults were yelling, looking like he’d just stepped into the tomb five minutes ago.