Because You're Mine by Colleen Coble and published by Thomas Nelson.
Amid the beauty of Charleston, not all is as it seems. When her husband Liam is killed by a car bomb while their Celtic band is on tour in Charleston, singer and Irish beauty Alanna doesn’t quite know where to turn. Her father-in-law is threatening to take custody of the baby she carries, but Alanna knows she can’t lose the only piece of Liam she has left. Alanna’s manager offers her a marriage of convenience to obtain U.S. citizenship and allow her to escape her father-in-law’s control. It seems like the perfect solution until she arrives at the family home of her new husband—a decaying mansion with more questions than answers.
Strange things begin happening that threaten Alanna’s life and the life of her child. Are they merely coincidences? Or is something more sinister at work? A mysterious painting, a haunting melody, and a love stronger than death leave Alanna questioning where darkness ends and light begins.