While your students are enjoying the witty text and celebrating !'s personal victory, they can absorb the roles of three important punctuation marks whom they may never see the same way again. (Did I just say "whom"? Yikes. Personification is a powerful tool!)
Possible writing connection:
Ask your children to imagine and write a sequel to the book. Begin by encouraging them to brainstorm. If they need guidance, ask questions, such as when and where do the punctuation marks meet again? What do they discuss? Who is the main character in the sequel? Once they have some ideas they like, writing may happily begin.
If your students do this assignment, please consider including it in the comments or submitting it to the Showcase.