The California Trail / The Trail Drive Series Book #5.
(Book)

Gold fever had hit California, and suddenly, the land was full of hungry pioneers. For Gil and Van Austin, two Texas brothers, it meant the chance to sell well-grazed longhorns after years of hard ranching and a treacherous cattle drive up through Mexico. The only trouble was that California was on the other side of a searing desert, swollen rivers, a barrage of Indian attacks, and a whole passel of outlaw trouble. And while the Texans and their men were ready and willing to take it all on, there was one thing they weren't prepared for: the ultimate act of treachery and deceit in a land of schemers, dreamers and gold!