Slocum and the Santa Fe sisters
(Book)

"When Slocum's good friend Colonel Gill McKee makes a trade for two sisters who were captured by Comanches, he agrees to return Elania and Katrina Proctor to their wealthy merchant father in Santa Fe. But with winter raging, Slocum won't be able to transport his precious cargo until the spring. At least he has some female company to keep him warm. But when a band of outlaws murders McKee's men, Slocum puts romance on the back burner in order to find their leader, a ruthless gunslinger named King. After all, there's nothing Slocum enjoys more than some well-deserved payback" -- from publisher's web site.