There are quite a few typos/misused words in book 3 of this series...like "black", instead of "back", "shallow" instead of "swallow", "awarded" instead of "rewarded", "make" instead of "meet". Additionnally, characters are mis-identified when referencing past events ...for example Isaac is talking to Hunter and says "...when you blah blah blah..... ", except it wasn't Hunter that "blah blah blah" it was the FBI agents. And tell me have you ever heard of "a tight, pleated, pencil skirt" ? I may not be a fashion designer, but even I know if it's pleated, it 's going to be wider at the bottom and therefore, by nature of it's design, can't be a pencil skirt. This book especially needs better proof reading.
Additionally, there are so many characters in the series that it can get hard to keep track of who's who, especially if you have to put the book down for a few hrs to attend to life's business. This is particularly true of minor characters that are mentioned, but aren't prominent in books 1 & 2. I found myself going back a few times when they reappeared to verify who the character was ... ( e..g. Was Henry the father or the son? Who was Clara?, Etc.). Some of these characters were insignificant in the first two books of the series, but play a more significant role in book 3 or I suspect will play a significant role in book 4.
In spite of the above,, I still loved this book. A lot happens in this book. Some things come to light, but it only brings more question and mystery. Isaac is the "enigma" .... He appears one way to the world, yet he shows a different side to Isabelle. We've learned a little more of his back ground/past by the end of Book 3 but there is still a mystery about him, something that hasn't yet been revealed. But Isaac isn't the only enigma...there's something about Brandon, a secondary character, as well. In books 1& 2 he's been nothing but a blushing, unassuming co-worker and friend of Isabelle's who maybe has a crush on her. But in this book we discover he has unexpected fighting skills, a smoking body he's been hiding under the clothes he wears, and that he comes from a wealthy family...so why is he working long hours for !little pay as an FBI agent?
The plot thickens in this book and a mystery character appears. Is it someone who has made an appearance in past books, but Isabelle has yet to meet, or is it a totally new character? And why is he following her? What is the "business" deal Isaac is involved in with a character that has a connection to Isabelle? We know it likely has something to do with protecting Isabelle, but we don't know what it is yet. While some things come to light that will resolve the cliff hanger in Book 2, there are other events, people and issues that occur creating more drama and mystery. Even with the proofing errors noted above the story is well written and will hold your interest., The characters are vivid and come to life and I am definitely looking forward to reading the last book...book 4 aptly titled Enigma: The Final Chapter.
(There are other books in this series, but they deal with stories of other charafters that appeared in previous books. Isaac and Isabelles story ends in book 4, though they may appear in subsequent books, they will not be main characters.)