Freddie Iven, wounded and trapped with an enemy soldier, Hans Winter, under a pillbox during World War I, wouldn’t mind dying, but after he and Hans claw their way out, returning to fight against each other seems impossible. When a mysterious stranger offers them shelter and a way to forget their trauma, the lines between reality and imagination start to blur. Months later, Freddie’s sister, Laura, is notified of his death, but whispers of battlefield hauntings call her to the trenches to see whether Freddie has survived or fallen victim to something more sinister. Arden, best known for her Winternight fantasy trilogy, weaves together a tale of supernatural folklore and war that emphasizes the ghastliness of both. (Del Rey, Feb. 13)