I'm always on the lookout for mysteries featuring unusual protagonists, and the 11-year-old girl genius at the heart of this book certainly fits that description. Flavia de Luce lives in a ramshackle English country manor house sometime around 1950, with her withdrawn and distant war hero father, and her two incredibly annoying older sisters (the mother died years ago). One morning a dead bird is left on the doorstep with a mysterious postage stamp on its beak, and soon thereafter a body is found in the cucumber patch! It's pretty clear we're in a classic British village cozy mystery.
The story capitalizes on the cliche that, like elderly ladies (I'm looking at you Ms. Marple), no one really notices children or pays too much attention to their nosiness. So, Flavia is free to race around on her trusty bike, digging into newspaper archives, talking to old-timers, and poking through the belongings of a lodger at the village pub. It's not mere preciousness (although there is an excess of this) that drives her -- the police have arrested her father, and believe him to be guilty of killing the person in the cucumber patch.
The whys are wherefores revolve around stamp collecting and a dark event from her father's schoolboy days at the local prep school. Unfortunately, it's the kind of mystery where as each element was revealed, I found myself less and less on board with the whole story. Part of the problem is that it becomes all too obvious who the true killer is and why. I'm not the kind of person who tries to solve a mystery while reading, but it's pretty hard not to do so here. Another large problem is the character of Flavia herself: she's just far too precocious, plucky, and bright for her age. Her personality wears pretty thin, and I found myself less and less interested in spending time with her as the book rolled on.
All that said, I can see how she might develop into a richer character, as the author finds a more nuanced voice for her. There are some nice good scenes of genuine peril, and if he can come up with some more perplexing intrigues for her, Flavia might be a character to get to know as she grows older.