The Imposter Bride by Nancy Richler. The book is being released by St. Martin's Press on Jan. 29, 2013.
Amazon says this about the book: An unforgettable novel about a mysterious mail-order bride in the wake of WWII, whose sudden decision ripples through time to deeply impact the daughter she never knew
The Imposter Bride blends gorgeous storytelling and generation-spanning intrigue in the story of Lily Azerov. A young, enigmatic woman, Lily arrives in post-WWII Montreal on her own, expecting to be married to Sol Kramer. But, upon seeing her at the train station, Sol turns her down. Out of pity, his brother Nathan decides to marry her instead, and pity turns into a deep—and doomed—love. But it is immediately clear that Lily is not who she claims to be. Her attempt to live out her life as Lily Azerov shatters when she disappears, leaving a new husband and a baby daughter with only a diary, a large uncut diamond—and a need to find the truth.
Who is Lily and what happened to the young woman whose identity she stole? Why has she left and where did she go? It's up to the daughter Lily abandoned to find the answers to these questions, as she searches for the mother she may never find or truly know.