Trapped in time

Teaser
Nathan and Audrey find an old watch. It's magic! It takes them back over 200 years. There, the two children meet a drummer boy with a fancy uniform. Without meaning to, they get him in a lot of trouble. Now the soldiers are looking for him. Where will the children stay? They must escape capture! From http://ruthchew.com/about-the-books/Trapped-in-Time.htm