2 books · Ages 7–10 · Chapter Books
Horace Splattly: The Cupcaked Crusader is a 2-book series for ages 7–10 by Lawrence David. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, When Second Graders Attack! and To Catch a Clownosaurus are great first picks.
No particular order needed — browse and pick what catches your eye.