The Ice Twins is about a family that moves from London to a remote island in Scotland after the death of one of their twin daughters. Shortly before the move, Sarah, the mother of the girls, begins to wonder if something is off about her surviving daughter, Kirstie.
After the family moves to the island, the feeling of isolation adds to the mystery of what is going on with Kirstie, whose behavior is becoming more and more erratic. She begins to insist that she is her dead sister, Lydia, and that there has been a horrible case of mistaken identity. As Sarah delves more deeply into what has happened, she wonders if they have in fact a horrible case of mistaken identity. The novel is told in the alternating perspective of Sarah and of her husband, Angus, who is the father of the girls.
I found this novel very enjoyable and fast paced. I’d recommend it to readers who enjoy a good mystery/thriller. I’m looking forward to reading more of S. K. Tremayne’s books.