The Weed that String's the Hangman's Bag
This is the second Flavia de Luce mystery book, though the order in this series isn't (at least at this point in the series) important. I really enjoy how Flavia interacts with the citizens of Bishops Lacey, and works to ask the right questions to get the answers she's looking for. Unlike the first book this story takes a while to get to mystery part of the story but it didn't bother me because I liked seeing the relationships play out and build. I think Aunt Felicity was a great addition to the family cast. Overall I really like this series and am excited to read more of them though I am going to hold off for a while so I don't get burned out.
