Once upon a time, there was a little black dog named Spot. Spot loved to play and run in the park. One day, Spot saw a tunnel. He was very curious and wanted to see what was inside.
Spot went into the tunnel and it was very dark. He heard a voice say, "Hello, I am Momo the mouse. Be careful, or you will regret going further." Spot didn't listen to Momo and kept going. Soon, he was lost and scared.
Finally, Spot found his way out of the tunnel. He was so happy to see the sun and his friends again. Spot said to Momo, "Thank you for warning me. I should have listened to you. I won't go into dark tunnels again." Momo smiled and said, "It's okay. Now you know to be careful and listen to your friends." And they both played happily in the park.
