Adventures in the Animal Kingdom

Nine-year-old Zhao Siyu discovered a hole as big as a bowl in a big tree in his community. A ray of sunlight came out of the hole, and he was curious to put his hand in. Then a voice interrupted him. "Please give in, I want to go in..." When I looked down, I saw it was a fat black cat. I saw it crawling to the entrance of the hole and sticking its head in. In an instant, the black cat disappeared, and even the entrance to the cave disappeared...