Happy Publication Day! Thank you to the author for an ARC in exchange for an honest review. I enjoyed spending some more time with Harriet and Curran and I thought that the mystery in this one was stellar. Curran has returned from London, expecting a promotion after the events in the last book, but instead his nemesis, Wallace, has come from Scotland Yard to take the job that Curran thought should be his. To make matters worse, another thorn in Curran's side is also coming to town, Sir Henry Cunningham is coming to celebrate King George V's coronation and he is a serial pedophile. Curran and Wallace clashed on the case when a boy killed himself after attending Cunninghan's soirees where young boys and girls, under the guise of mentorship, were being groomed and abused by Sir Henry. A letter exposing his evil ways went mysteriously missing from the case file and Sir Henry got off. Now, he seems a shell of himself, suffering from some ailment that has left him weak and tired. He is accompanied by his wife and a cadre of staff and servants, including his secretary, Gilmore, his valet, Ellis, and Mary Brown, his wife's maid. On the night of the welcome gala, one of the young girls from the choir, Amelia, goes missing and is later found dead on the patio where it appears that she fell or jumped from the gallery above. Her school uniform is gone and instead she is dressed in an amethyst ball gown that is too big for her. Was Sir Henry grooming her? Is he responsible for her death. Wallace forbids Curran from interviewing Sir Henry but when Wallace falls ill, Curran is put in charge of the investigation. He begins interviewing those in attendance that night, including his sister, Samrita, and her art teacher and lover, Tom Barker, who painted Lady Cunningham's portrait, Harriet and her brother, Jullian, Jullian's girlfriend and head of the girl's school that Amelia attended, Esme, and Grif Maddocks and his fellow reporter, Sarah Bowman, who has a copy of the missing latter in the Sir Henry case and wants to use it to bring the politician down. But when Sir Henry is also murdered, this time by poison, Curran admits that he might have been wrong about Amelia's death. The immediate suspect in Sir Henry's death is Mary Brown, who is the sister of the boy who killed himself. When arsenic is found in her room, it is assumed that she killed Sir Henry in revenge. But why did she wait 2 years? Before Curran can question her, she escapes and runs to her friend, Tom Barker, for help. He was friends with her brother and has been hiding evidence that Mary has collected that will prove that Sir Henry is an evil man. They ask Harriet for help in putting Mary in contact with Sarah so that she can use the evidence in her article. She reluctantly agrees on the condition that Mary turn herself over to Curran afterwards. But Mary never makes it to the meeting and is found dead, floating in the pond, and the evidence is missing. When Harriet visits Samrita in Tom's studio, she sees a picture that Tom painted of Samrita in an amethyst gown and it is clear that Tom is the murderer. He and Lady Cunningham were having an affair and Amelia accidentally caught them when she snuck off to rendezvous with a boy. Tom killed Mary because she also saw the painting and knew that he had killed Amelia. Lady Cunningham killed Sir Henry, who she was keeping sick with low amounts of arsenic so that he wouldn't go after her own daughters. Once she heard about Sarah and her article, she decided that she had to kill him to avoid a scandal. By the end of the book, Curran is promoted, he and Harriet are married, Jullian and Esme are engaged and Will, Harriet's ward is off to boarding school. There were a few things that kept this from being a 5 star book for me. Curran seemed too mellow, constantly forgiving Harriet's interference in the case without even a harsh word, which is not keeping in character with his behavior in the previous books where he could hold a grudge for quite a while. Also, the whole side story with Will asking about his father was misplaced in this book and should have been in an earlier book since the events with his father happened in the first book of the series. But all in all, this is a good end to the series.