Dutchman's Puzzle

Dave Van Meer was a traveling man. All he needed was a temporary job, a temporary home. Sooner or later it would be time to move on, and he liked it that way. Eleanor Ward's twin son and daughter had never known their father. He was an explorer, she told them, off to see the world. A snow storm, an icy sidewalk, a chance encounter in an Iowa town. Strangers with excellent reasons to forget the way things once were. Could they have a future together? Or would someone from the past destroy it all? And what evil was growing in this out-of-the-way small town? Suddenly, the world was watching...