Harrison David Rivers’ play Only You Can Prevent Wildfires takes as its jumping-off point an actual conflagration known as the Hayman fire, the worst blaze in Colorado’s history. Sparked mysteriously on June 8, 2002, the fire burned 137,000 acres and destroyed 133 homes. Fire Prevention Technician Terry Barton later admitted to starting it after burning a letter from her estranged husband. That letter is a focus of several speeches—the play begins with Terry’s insistence that she didn’t read the letter, but rather put it in her purse—yet it’s a mark of Rivers’ skill that by the end of his riveting play one still doesn’t know the contents of it.