As World War I raged across the globe, hundreds of young women toiled away at the radium-dial factories, where they painted clock faces with a mysterious new substance called radium. Assured by their bosses that the luminous material was safe, the women themselves shone brightly in the dark, covered from head to toe with the glowing dust. With such a coveted job, these "shining girls" were considered the luckiest alive--until they began to fall mysteriously...

A scholarship girl from Brooklyn, Kate Moran thought she found a place among Smith's Mayflower descendants, only to have her illusions dashed the summer after graduation. When charismatic alumna Betsy Rutherford delivers a rousing speech at the Smith College Club in April of 1917, looking for volunteers to help French civilians decimated by the German war machine, Kate is too busy earning her living to even think of taking up the call. But when her...