I call these middle grade because as a teacher I know the reading level. And these would be aimed for those about 10 years old and older.

And thanks for saying my writing is getting better, that certainly is my hope. I keep reading other works and try to add it here, and with anything the more you do it the better you should get.

I started my book writing career off doing 1st grade and 2nd grade picture books, and then as an experiment I wrote the first of this series, and was told by both students and adults that they liked it. And then the sales followed. This series is my biggest seller, so that motivates it.

As a fifth grade teacher I got immediate feedback on the first books, and could tell what worked and what didn't, and adjusted.

But I call them middle grade, because of my teaching experience.