Seventeen years ago, Avery Vale pulled a drowning boy from a frozen lake and never told a soul. Her beautiful sister Celeste, who wore the same silver bracelet, took the credit without ever knowing it.Now that boy is Damian Blackwood, the coldest billionaire in the country, and he is desperately in love with the wrong sister.When Celeste vanishes days before the wedding, dragging a financial scandal behind her, Damian needs a bride by sunrise or his family's billion-dollar merger dies. So he turns to the sister he has never noticed and says: "Marry me in her place. You'll be my wife on paper, never in my heart."Avery says yes. She isn't doing it for him. Someone inside the Blackwood empire has been bleeding it dry for years, and that person may be the one who nearly killed Damian at the lake.But the woman he humiliates, ignores and calls a substitute knows how he takes his coffee. She knows the scar on his shoulder. She knows the nickname only his savior could know.By the time Damian finds the photograph that proves the truth, Avery  is gone. She's carrying his secret, his empire's only hope and his unborn child.