The Weed That Strings the Hangman's Bag is by Alan Bradley. The second book in the Flavia de Luce mystery series. Eleven-year-old Flavia is at it again. When a famous puppeteer dies during a performance in Bishop's Lacey it's up to Flavia to solve the mystery before the police. Another in an enchanting series of mysteries with a most precocious and delightful heroine. A great series.
Ratings: 9th grade - 9 out of 10 - V (violence) - AC (some mature thematic content).