Mystery Child — Carla Cassidy

The cries came night after night, a child's anguished sobbing, echoing through the halls on the mansion that was Julie Kingsdon's legacy. And there was no possible explanation for them, except perhaps the haunted eyes of the man she shared this house with, the most compelling, and disturbing man she had every known.
Forest Kingdon had been far from welcoming to his bother's widow and her young son, and Julie suspected there were dark reasons for his coldness -- reasons tied to those bone-chilling cries in the night. And yet nothing could tear her away from this man now, not even her growing fear that she and her child were in mortal danger...