What better way to celebrate the milestone of 20 books in a series than to write a story about a birthday, Greg Heffley's birthday.
Greg's sure his family is planning a surprise party for him. Unfortunately, although he's excited about it, he's also a bit nervous, too.
What could go wrong? Well, his family forgetting his birthday is what.
How can that happen? Well Greg soon finds out what led to it, then in true Heffley style his family decides to make it up to him and plan a super dooper party.
That means decisions for Greg, or so he'd like to think.
Like whether to have a family party at a restaurant, or friend party somewhere like the trampoline park or an escape room or the museum.















