The Montana Gold Mine - to be released January 13, 2026.

In spring 1874, the American economy is descending into a depression, following the collapse of Jay Cooke’s financial empire. Amid the chain of bank and business failures set off by Cooke’s bankruptcy, Jubilee Walker struggles to keep Warner and Walker Outfitters solvent.

Jubil’s grand plans for developing Yellowstone National Park into a popular tourist destination were dashed when Cooke’s business failed, but he is still determined to help fulfill the park’s potential—not to mention his promise to his friend White Dog to end the corruption affecting the well-being of the people living on the Crow reservation.

When Jubil solicits support from the highest levels of government, he sets off a chain of events that puts not only him but the ones he loves most in grave danger. What is the nature of the secret Jubil’s nemesis is hiding? And how far will he go to protect it?

Book four in the Jubilee Walker series is loosely based on historical events.