Todsünde: A Gripping Psychological Thriller Novel - Perfect for Mystery Lovers & Book Clubs" （注：根据优化要求： 1. 保留了原标题"Todsünde"（德语，意为"死罪"）作为系列/品牌关键词 2. 补充了"Psychological Thriller"明确类型，增加"Novel"强化书籍属性 3. 添加场景描述吸引目标读者：悬疑爱好者与读书会场景 4. 英文语法修正"Thriller"拼写错误）

'They want us to know why they died...'Within the walls of a cloistered convent, a scene of unspeakable carnage is discovered. On the snow lie two nuns, one dead, one critically injured - victims of a seemingly motiveless, brutally savage attack.Dr Maura Isles' autopsy of the murder victim yields a shocking surprise, but the case takes a disturbing twist. The body of another woman has been found. And someone has gone to a lot of trouble to remove her face, hands and feet.As long buried secrets are uncovered, Dr Isles and detective Jane Rizzoli, find themselves part of a terrifying investigation that leads to a chilling realisation of the killer’s identity…