I have one word for this book: PHANTASMAGORICAL 
 Let's begin from the beginning and let me state a few important facts that I noticed about this book compared to the other Fantasyland books 
 1. The writing style of the book is different. There are multiple points of view in this book - mainly the points of view by Ilsa and Apollo. In previous books only the girl was describing her adventures (mostly with cheerful descriptions) and she was setting the pace of the book. 
 2. The book does not have big surprises. The parallel universe is more or less established. The readers know what to expect. The main couple is more self conscious. Apollo knows there is this alternative universe where everybody has a twin and he goes there to find his dead wife's twin and save her from her abusive husband. He knows what he is doing. Ilsa knows almost straight away that she is delivered in a land which is not earth and there is this man who is identical to her cruel husband only he is not him. There are no big surprises. They know. From the beginning. 
 3. The book is definetely darker. There is this magical place again with the snow, the elves, the dragons, the kingdoms, the amazing houses, castles, with the witches and the fairytale feeling. BUT there is also deep down soul darkness and brokenness. 
 Ilsa is shattered. She had suffered domestic abuse by her husband and she had suffered rejection by her parents. 
 Apollo is broken. He has lost the love of his life, the mother of his children. He has a half heart. 
 The negative feelings and the dancing around the roots of these two peoples' true problems, made me finish the book later than I thought I would. I just could not make me myself finish it. It was darkening my soul as well. 
 4. The book is definetely more erotic. There are scenes between Apolo and Ilsa that will make you either blush or they will make you horny. Or maybe they will make you both, I don't know. BUT certainly their love scenes will be noticeable and remembered. The adela tea helps in the perfect first sex scene. There are also so many strong sexual plays between them throughout the book. 
 Let's talk about the main couple now: 
 APOLLO: Hmm, well, hmm. For sure I liked him less than Frey, Lahn and Tor. Totally bossy, commanding, dictatorial, arrogant. And why not we use some other names? Let's call him also asshole and jerk. He was in love with his dead wife and he falls deeply in love for a second time in his life and he does not know how to handle it. 
 ILSA: One word. Broken. She is the weakest of the female characters (Finnie, Circe and Cora) for the majority of the book. She keeps feeling empty. She is stronger in the beginning of the book (running away from Pol), but after a while she looses her purpose. She does one foolish thing after the other and Apollo is not helping. He makes her feel like dirt. He abuses her verbally. The first time she talks back to him, he retreats into anger and they do not talk for 4 days until she lays herself bared to him to short things out. 
 APOLLO & ILSA: Thank god there is love in the end. Love words and apologies are exchanged. Apollo gives Ilsa safety, home laughter, kindness, good friends, his children, beautiful things like houses and jewels. Ilsa gives him her trust, her body and soul completely. They are both fixed in the end. 
 There is also Franca who is an interesting character and who speaks the truth in a way that does not make her likable. I love women who behave with lots of bitchiness, but it is almost certain they are hinding secrets and soft spots. I am looking forward to seeing her melting under the power of love in the next book of the series. 
 I cannot find enough words to recommend strongly this series to Fantacy books fans. If you love fantacy, read the books. The high quality and the depth of the books cannot be described. You will love them.