I don't know what to say. This book is brilliant, perfect, wonderful. I was not sure about reading it because one hero is married with children and the other hero is his wife's twin brother! It is not a threesome, so I thought it would be some disgusting cheating and I will not like the characters. 
 I was sooooo wrong! It is a wonderful book, full of love, and nothing disgusting about the heroes or their love at all. Their love and love story is of the purest kind. Ah, my romantic heart! Money very well spent! If I could give it more than 5 stars I would. In the MM romance style, this book is a masterpiece. 
 I don't know how to review this book without spoilers. 
 It is the love story of Tristan and Charles. 
 Tristan is a golden - aristocratic - boy. Noble, wealthy, gorgeous, strong, courageous, charming, adored by women and admired by men. He has a wife and son as well. He seems to have it all. But under all this persona, there is a little boy & a young man who is suffering from lack of love, loneliness, guilt and terrible self-loathing. In spite of a son he adores, he is at the end of his rope. 
 Then he meets Charles, his wife's twin brother, a decorated soldier, who was away, fighting. Charles is the ultimate gorgeous soldier: strong, a war hero, brave, fighting for his country, a live with a higher purpose than partying ... and he was wearing his dark blue cavalry uniform. 
 It is love at first sight. From the moment Tristan heard his smooth and strong and rich baritone voice. 
 But it will not be easy for many reasons: Tristan does not approve of "sodomy", Tristan is depressed and has no interest in life, he has a wife and son, and the country is at war etc. 
 The book is quite long and never boring and all the issues will be addressed. 
 Just read and enjoy