I am half-sick of shadows : a Flavia de Luce novel / Alan Bradley.

Enhanced descriptions from Syndetics:

"Every Flavia de Luce novel is a reason to celebrate."-- USA Today
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ALAN BRADLEY, AUTHOR OF THE MOST AWARD-WINNING SERIES DEBUT OF ANY YEAR, RETURNS WITH ANOTHER IRRESISTIBLE FLAVIA DE LUCE NOVEL.
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"[Alan] Bradley has created one of the most original, charming, devilishly creative and hilarious detectives of any age or any time."--Bookreporter
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It's Christmastime, and Flavia de Luce--an eleven-year-old sleuth with a passion for chemistry--is tucked away in her laboratory, whipping up a concoction to ensnare Saint Nick. But she is soon distracted when a film crew arrives at Buckshaw, the de Luces' decaying English estate, to shoot a movie starring the famed Phyllis Wyvern. Amid a raging blizzard, the entire village of Bishop's Lacey gathers at Buckshaw to watch Wyvern perform, yet nobody is prepared for the evening's shocking conclusion: a body found strangled to death with a length of film. But who among the assembled guests would stage such a chilling scene? As the storm worsens and the list of suspects grows, Flavia must ferret out a killer hidden in plain sight.
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"[Flavia is] the most intrepid and charming adolescent chemist/detective/busybody in all of rural, post-World War II England."-- The Seattle Times
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"Quirky and delightful . . . Flavia is a classic literary character who manages to appeal to both young and old readers equally."--Wichita Falls Times Record News
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"Bradley's plot twists and turns delightfully." --Fort Worth Star-Telegram
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NAMED ONE OF THE BEST MYSTERIES OF THE YEAR BY THE SEATTLE TIMES