I received a copy of this from Netgalley and this is my freely given opinion.
This is the fifth book in the De Petras Saga and appears to be the final story of the series.
This is about the youngest De Petras child, Sapphire, who was born after the reunion of Jasper and Opal. She was also born with a physical disfigurement, missing a hand, with her arm ending at a stub at about the wrist. This is difficult to deal with in a Society that is harsh in how it judges everyone and lacks compassion, and she has to frequently deal with the insensitive and rude behaviour and comments of other members of the Ton. But Sapphire is a naturally vivacious and sunny natured person, and is loved and supported by her family and true friends, including James, the Earl of Maltravers. He is of an age with her brother Micah, but is especially close to Sapphire. He was orphaned rather young and he and the De Petras family see each other as family. Unfortunately, Sapphire sees him as another brother. Unfortunate because he has been hiding a passionate and abiding love for her for years.
Sapphire is the youngest of the entire clan, and despite now being in her 20s, still treated as the youngest by all her family and is getting sick of it. She wants them to see her as an adult, and thinks that the only way to do so is for a drastic change to occur, such as if she were to marry. She develops a ruse to have a fake betrothal to elevate and accentuate her status as an adult in the eyes of her family and the only person she trusts to aid and abet her is her best friend, James.
James is bemused because this is his ideal dream come true, to marry Sapphire... except this is a ruse, and he is going to help her because he loves her regardless, and will always help her. But if only it were real, and she would see past her blinders of seeing him as a friend and like a brother to how deeply he loves her.
As the ruse starts and moves along, the De Petras family and their friends are taken in, and thrilled as Sapphire and James are well loved in their circle. James has to reconcile himself to the fact that while he has everything he has ever wanted, it is really fake and will end. Sapphire is thrilled that it is working and she is being treated better by her family, but then becomes distressed over how to end the engagement, and how complicated the ruse is becoming, including changing how she sees and feels about James.
This was a sweet friends to lovers love story, which is a trope I always love. It was seen in the previous books how James adored Sapphire and how clueless she was about how her friend saw her, and I have been looking forward to this story. I quite enjoyed it, but did have a quibble about an episode of conflict that James and Sapphire had near the latter quarter of the book; it felt a bit contrived and overblown. But it was nice to see their relationship develop towards the HEA, and the growth of the De Petras family overall, including the next generation. I am disappointed that there is not going to be a story, from what it appears, about Cousin Amethyst, and a better explanation about her family history (which would also shed some light on Opal also).
But I did love the ending of the story, and how it slyly circles around again. Nice touch.
3.75 stars out of 5