This fourth book of the Outlander serie, we follow Jamie and Claire as they start their new life in America. There, they find a lovely spot in the mountains to build their farm. We also discover how Brianna and Roger continued their life after Claire's departure. In the 1970s, they discover something about Claire and Jamie that brings Brianna to Craigh Na Dunn to save her parents. Will she find them? Will Roger's love make him try the impossible to join Brianna? 
 Again, this book was a masterpiece! The more I read this series, the more I realize that every single character we meet and every details is important. I'm very impressed about what or who comes back from one book to the other. When I thought the presence of one character was over, it comes back in a twisted way again and again (Bonnet for example). In this book, Claire and Jamie are even more mature; their love is kind of more calm and serene than in previous books. I'm also very happy that Ian found love and a place he considers it's own. 
 On the downside, I found Brianna to be SO childish! She's like 23 and acts in such an immature way! She loves Roger but don't want to marry him in case she finds better. Doesn't tell him about her plans to join her parents, etc., etc. Seriously? I'm glad (view spoiler)[ Roger decided to join her! He had to endure so much but still decided to stay at her side and she's the one who wouldn't talk to him! (hide spoiler)] 
 I can't wait to start book 5 and see what brings the future for the families...