Thanks to the Netgalley and the author for a copy of this ebook and this is my freely given opinion.
This is a part of the Lyon's Den series, but it would be helpful if you read book 1 of the Control series, Charlotte's Control, because the two main characters in this book, and some background on them are denoted in Charlotte's Control.
In Lyon's Lover, we have a forced proximity historical romance with differing social status, reverse age gap, family conflict, and addiction themes. Isabella Rossi is a talented and sought after courtesan, who has decided to retire. Thanks to her friendship with her financially savvy friend, Charlotte, she has accumulated enough wealth to not need to seek and cater to male benefactors anymore, and can use it instead to forward her own goals. She seeks out the help of the Black Widow, owner of the Lyon's Den for her matchmaking services. But, in addition in lieu of part of her fee, Mrs. Dove-Lyons contracts Isabella to provide a service that she as successfully plied before. Not as a courtesan, but as someone who has successfully aided another in overcoming an addiction. The Widow has a problem client that she wants Isabella to help overcome his particular vices.
Despite having some doubts of this particular request, Isabella agrees, and is particularly chagrined when she finds out that the addict in question is a particularly loathsome, wastrel friend of her best friend's paramour. A boy she has met before, and who failed to make any positive impression on her because of his immaturity and poor behaviour. Luke Lynwood is a young man on the wrong path. Having lost his mother at an early age, and unable to earn the love and approval of his father, the Earl, he runs down the path of dissipation, preferring to recklessly gamble and drink his days away. But he gambles and loses too much one night and ends up caught up in the Black Widows schemes and forced into the not so loving arms of Isabella Rossi.
This starts out with both parties being more enemies than anything else, with Isabella seeing Luke as an immature, drunken wastrel and neither liking, trusting, nor expecting much from him. Luke lacks any sense of direction, and sense of self, and having nothing else, settled on drinking, gambling, and hanging with the wrong set of people to get through his days, and avoids responsibilities, especially having to deal with his fractured relationship with his father. But as he sobers up, he starts to gain a sense of accomplishment, and sense of self and a direction for his life. He and Isabella, despite an ignoble beginnings, do develop a friendship, and burgeoning attraction for each other. But Isabella doesn't want an affair or another patron. What she wants is marriage, and to raise a family outside of Town, so that she can leave her past behind. When she returns to the widow with the Luke, Mrs. Dove-Lyons throws her plans for a loop again when she presents to her chosen match for Isabella - the newly sober Luke.
This is not the whole of the story. Isabella and Luke are forced to deal with her qualms about their relationship, with their differing social status, as well as with her past and his family issues as well before they can find their HEA. Not to give to much away, but there are some interesting elements about Isabella's past that overlap with Luke's family as well, and at times, as a reader, there were some cringy moments on thinking about them. But I found the evolution of Luke and Isabella's relationship and his growth to be sweet, with a lot of expected heat as they allowed their attraction to bloom.
3.75 stars out of 5