Doku Iri Chocolate Jiken / Original Title: the Poisoned Chocolates Case (Hajime Motosuiri Bunko)

[Machine Translation] The members of the "Crime Scene Society," founded by Roger Sheringham, are on the verge of solving a difficult case that is on the verge of going cold. The victims were a husband and wife who had tasted a new chocolate product that was claimed to be laced with poison. The husband survives, but the wife dies. However, the chocolates were not sent to the couple, but to someone else. What is the truth behind the incident? The members of the club investigate on their own, and present their own theories.

ロジャー・シェリンガムが創設した「犯罪研究会」の面面は、迷宮入り寸前の難事件に挑むことになった。被害者は、毒がしこまれた、新製品という触れ込みのチョコレートを試食した夫妻。夫は一命を取り留めたが、夫人は死亡する。だが、チョコレートは夫妻ではなく他人へ送られたものだった。事件の真相や如何に?会員たちは独自に調査を重ね、各自の推理を披露していく-。