Three Times Lucky by Sheila Turnage.
Freddy in 5th grade says he likes this book because it's scary. He gives it a 5 out of 5! I haven't read the book, (and we don't have it in the library yet,) but I did a little research and it sounds like the perfect summer book. A brave heroine, a murder mystery, quirky Southern characters...Maybe I'll download the audiobook and listen to it when I'm working in the garden. Keep those reviews coming!