Elaborate silk gowns. Dashing British officers. Rugged American rebels. Marie Antoinette-esque poufs. Rum. Ruffles. Riding in horse-drawn carriages. My favorite way to travel is by book—and it's as close to time travel as you can get. Each night for the past week, I've been transported to colonial Philadelphia to live among the likes of Peggy Shippen, Benedict Arnold, John Andre, and George Washington.