This book is written in short chapters that are mostly emails and journal entries. There are three main characters: Carlos, orphaned at a young age with family ties in the Mexican Cartels, Mia, an older woman looking for life in trips to Mexico away from her husband and son, and, Lucia, an FBI agent who helps link and lead you through the story. This is the first book in the Carlos & Mia series.
I did enjoy the characters and the slow peeling back of their stories. The mixture of cultures, locations and romance was well done. That said there is a lot of skipping between characters, locations and time. I found myself having to go back a page at times to make sure I had the right character or time period.
I enjoyed the book but there were a lot of questions left unanswered. A lot of scenes were left without explanation and appeared to be glimpses into partial subplots or minor characters. I wish a few more lose ends had been wrapped up. If I had it to do over I would wait until I had the second book in hand and then read them together with the hope of getting closure on some parts of the story. If you have Kindle Unlimited you can do that now.