Slocum and the High-Rails Heiress (Slocum Series #398)

Slocum gives a rollicking rich girl the ride of her life!

Slocum’s at the end of his tether when a stranger offers him a hot meal, a job escorting precious cargo to Salt Lake City, and a thousand dollar advance. It may be too good to be true, but it’s also too good to turn down—especially when he gets a look at the cargo…
 
In his care is a mysterious chest, the key to which rests on another chest—that of Augusta Barr, a stunning heiress with more than a little mystery of her own. Pursued by a deadly pair of redheaded roughnecks, Slocum finds himself caught in a deadly mix of beauty, bounty, and bullets.