Boom isn't supposed to be a safe cracker. Sure, her nickname comes from her talent with dynamite, but she has an honest job. For almost as long as she can remember, she and her grandfather have worked the Transcontinental Railroad with the other Chinese. But when a friend of the foreman shows up and buys out her contract, she soon finds herself crossing half the continent for a job that's anything but honest.
Miles Anderson's old army chaplain is offering spiritual absolution for Miles' dirty work for the Union. All it requires is one last act of reparation: cracking the safe of a riverboat casino before it gets to New Orleans and donating the cash to an orphanage. With over 1000 miles between Miles and his destination in St. Louis, he's short on time to find a blastman for the job. A 16-year old Chinese girl isn't what he has in mind, but it's the best he can do on short notice.
When Boom learns what she's been hired to do she faces becoming a criminal for charity or a very long walk home. Taking a riverboat south brings Miles closer to the sins of his past and vigilantes out for his head. Then there's the little matter of breaking into the monstrous casino safe without ending up in prison or at the end of a noose.
BOOM is a western novel, complete at 71,000 words.