Your favorite series.
The series that immediately popped into my mind was The Bobbsey Twins. I know I am showing my age by saying that, but I read Laura Lee Hope’s novels about Nan and Bert and Flossie and Freddie avidly from the time I was about 7 until I was 10 or 11. My uncle used to give me two hard cover books for my birthday and I loved them…and still have many. In many of the earliest books these mystery solving twins were really young, Flossie and Freddie only 4, but they consistently solved the mysteries in and around Lakeport, Michigan. (And yes, I am remembering all these names without looking them up! I was a fan, I tell you!)
I am not really a serial reader. I associate serials with mysteries and detective stories – the same characters, different crimes. That’s not to say that I don’t enjoy mysteries, I’ve just never really followed one character through a bunch of different stories. I follow authors, though and have several I admire: Carolyn Slaughter, Thomas H. Cook, Helen Humphreys, Helen Dunmore. If they’re writing, I’m reading.