"Sally Hepworth, the author of The Mother-In-Law, delivers a knock-out of a novel about the lies that bind two sisters. From the outside, everyone might think Fern and Rose are as close as twin sisters can be: Rose is the responsible one, with a home and a husband and a fierce desire to become a mother. Fern is the quirky one, the free spirit, the librarian who avoids social interaction and whom the world might just describe as truly odd. But the...