内容简介
A full-length Hercule Poirot novel, adapted from Agatha Christie's stage play by Charles Osborne Sir Claud Amory's revolutionary new formula for a powerful explosive is stolen. Locking his house-guests in the library, Sir Claud switches off the lights to allow the thief to replace the formula, no questions asked. When the lights come on, he is dead, and Hercule Poirot and Capta...
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