Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Multi-Layered and Complex

Detective Chief-Inspector Adam Dalgleish is investigating the suspicious deaths of two nursing students at Nightingale House. Given the time and circumstance of both poisonings, it appears that a fellow student or one of the nursing instructors had something to do with it, or did they?As usual, P.D. James weaves subtle clues into complex relationships that take time to reveal, but with this book, I didn't mind. Although I found the narrative too plodding in Cover Her Face, it works much better in Shroud for a Nightingale. It could be that the characters's relationships had more depth and intrigue than in the earlier book. Certainly, the pall James slowly casts over Nightingale House makes the setting more intriguing. Also, there is better control over point of view in this book. I didn't learn much more about Dalgleish, but as James fans know, it's the deliciously slow revelations that make her plots and characters so appealing.