2 books · Ages 5–10 · Chapter Books
A Puzzling Day is a 2-book series for ages 5–10 by Scoular Anderson. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, A Puzzling Day in the Land of the Pharaohs and A Puzzling Day at Castle MacPelican are great first picks.
No particular order needed — browse and pick what catches your eye.