@sozobe,
My Son has a recommendation.
"Hi I just looked at the list with my mom.I really liked a series of books called
the Bailey School Kids. There are four third graders and they go on silly mysteries that might not be real."
He found it amusing that You have not read Harry Potter yet. He devoured them last school year. On an average one book per school week and then a report. I had the luxury of reading the book reports and editing them. So I got my taste of them.