What’s the Ending?

I love the expression on this little guy’s face, so he inspired me to include him as a prompt. What’s the ending of a story in which he’s the main character? I’m thinking a middle grade story, possibly a mystery. Here’s my ending:

Okay. So the squad and I didn’t deduce the identity of the thief who stole Mrs. Haines’s jewels. But we did find the jewels and that helped Mom arrest Mrs. Haines’s cousin. We’ll be the best private detectives in town by the time we’re in fourth grade.

Although the biggest mystery of all remains unsolved. My Santa trap didn’t produce any hard evidence. But I’ve got a whole year to work on it. That fat man won’t escape me next Christmas.

For more prompts about endings, click here.