Alan Bradley: The Flavia de Luce Mysteries

Main character: Flavia de Luce, 11-year-old aspiring chemist and amateur sleuth who uses her scientific curiosity to solve mysteries.
Setting: England
Bold type indicates a book I've read.

1. The Sweetness at the Bottom of the Pie (2009)
2. The Weed That Strings the Hangman's Bag (2010)
3. A Red Herring Without Mustard (2011)
4. I Am Half-Sick of Shadows (2011)
5. Speaking from Among the Bones (2013)
6. The Dead in Their Vaulted Arches (2014)
7. As Chimney Sweepers Come to Dust (2015) 
8. Thrice the Brinded Cat Hath Mew'd (2016)
9. The Grave's a Fine and Private Place (2018) 
10. The Golden Tresses of the Dead (2019)