Second chance romance is an often seen before plot but JAL has managed to write a refreshing take on this in Lyon and Olivia's story. 
 It was heart wrenching and exciting, and despite that strange epilogue, the ending (before the epilogue) was rather satisfying for their story, if not for the series as a whole. 
 However this being the story that we have waited so long for, I am allowed to be a little nit-picky. 
 Criticism: 
 1. Readers already know Lyon had been physically intimate with other women during their time apart, I can accept that, but I felt like the author kept reminding us of this repeatedly. It was unnecessary. The way she mentions (view spoiler)[it in their discussion when Olivia asked, then when Lyon says he no longer needed to spill in his trousers, and even in his expression on thinking of his past few years, but to add to that I really did not need to hear some of this pleasure however "mindless", was sometimes "extraordinary". (hide spoiler)]. 
 2. The epilogue. I agree with what other reviewers have said. (view spoiler)[It did read like a history lesson. The way they discussed the characters in such factual details felt unrealistic for 2 strangers having just met. I am not sure if it's because JAL is writing a contemporary romance next that she decides to do it this way and show us she can write modern romance. (hide spoiler)] Instead of ending the novel and series on a high note it ended on a strange and somewhat discordant note to the series and to this novel. I would have loved to see a Christmas many years later that showed actual interactions - are Violet and Olivia best of friends? 
 3. This one is a major spoiler: 
 (view spoiler)[Olivia struggles with her final decision on whether she should marry Landsdowne... but having just slept with Lyon, a few times, I would think honesty declares that she at least give him a due conversation on this? Is this really only her choice in the matter of whether she would marry him? (hide spoiler)] 
 My favorite story of the series is still Genevieve Eversea's (What I Did For A Duke).