Josie Blue has been hunting outlaws and predatory aliens for too long. As an agent for the Riders of the Purple Sage—an elite, paranormal division of the Pinkerton Agency—she's seen and done things that would break most people. Haunted by her past, she's become a shadow of herself. Her skewbald mare is lame. Her boots are worn through. Her canteen is dry. Her hat has gone missing. When folks mistake her for a man, she's too whipped to correct them.
And then Josie stumbles into Hellers Hole. Once thriving, the town is now scrabbling to survive. The new rail line offers a glimmer of hope. For Josie, it might be the last chance to escape her past and find something to hold onto.
Only, in carving out a peaceful life, she's forced to confront her demons. Can she find something worth fighting for in a town of outlaws, settlers, and strangers?