One day, a big dog named Spot went for a walk. He liked to walk to the mailbox. It was a large mailbox, and it was red. Spot liked to see if there was any mail for him.
On his walk, Spot saw a small box near the mailbox. He thought it was a new toy for him. He was very happy and excited. He picked up the box with his mouth and continued his walk back home.
When Spot got home, he opened the small box. But it was not a toy. It was a big, shiny key! Spot was surprised. He did not know what the key was for. So, Spot went back to the mailbox to find out. When he got there, he saw a small door with a lock. Spot used the shiny key to open the door. Inside, he found a room full of toys just for him! It was a secret playroom. Spot had a lot of fun playing with his new toys.
