This is the first book that I have read by Diane Chamberlain. I loved the characters and could sympathize with Carly. First Carly loses her husband and then finds out that the child she is carrying has a heart defect. Hunter, her sister's husband, confronts Carly and let her know that he is a time traveler. Hunter knows in the future there is a surgery that can be performed to save her child's life. Carly, at first, does not believe him but when he tells her something that happens in the future, and it does, she believes and decides to take the leap. It should be an easy trip based on Hunter's calculations but when things happen, the timeline for Carly to return to 1970 keeps getting shifted. A great book about love and sacrifice. Just a great book crossing genres!.