We’re reading The Radium Girls: The Dark Story of America's Shining Women. If you have your hands on a copy, this week we wanted to read up to the end of Chapter 4. If you haven’t been able to grab a copy, don’t worry, you can catch up later.

For next week, try to read up to the end of Chapter 13.

So far, we’ve been introduced to radium — once touted as a medical wonder — the women tasked with applying it to products, and the companies that paid them to do it. We also got a little of radium’s early history.

How did you feel about these first few chapters?