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R. Austin Freeman, The Aluminum Dagger (1909)

January 06

很有名的短篇。一人被铝杆匕首扎死在密室里。唯一的门从里反锁,窗户距地面四十尺。

手法
用压缩空气来复枪从窗户发射匕首。为了给匕首加上旋转,需要在柄上套一层壳。
 

Posted by on January 6, 2006 in impossible crime, locked room, story

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