Kinko Yaburi to Spy No Kagi / Original Title: the KEY to DECEIT (Sogen Suiri Bunko)

[Machine Translation] The body of a woman wearing a bracelet with a locked cameo was found in London during World War II. Ellie, a safecracker, was commissioned by Major Ramsey to unlock the lock. The contents of the cameo and the fact that the woman had been poisoned reveal that she was involved in espionage. Ellie is to assist the Major in finding the murderer and the spy.... This is the second in the series about the exploits of a brilliant safecracker and a hard-nosed young major!

第二次大戦下のロンドンで、鍵のかかったカメオ付きのブレスレットをつけた女性の遺体が発見された。金庫破りのエリーはラムゼイ少佐の依頼で、その鍵を解錠する。カメオの中身と女性が毒殺されていた点から、彼女はスパイ活動にかかわっていたと判明。エリーは少佐に協力して、殺人犯とスパイを捜し出すことに...。凄腕の金庫破りと堅物の青年少佐の活躍を描くシリーズ第2弾!