To the 19th Century — James W. Nelson

Eating their lunch from the steps of their next project, demolition workers Selby Staples and Rivet Foreston see people going about their business in the 19th century, then crossing an invisible line and reappearing in the 21st century. They don't know it yet, but they are witnessing a very dangerous time warp. Demolition of Matherby Hall must stop. Only Selby and Rivet will stand between time passing normally forward, or reverting backward to chaos.