Trains and Menace - Seven Territories, #4

The ride of his life... or death Fleeing the battlefield and his nightmares of the zombie Menace, disgraced Texas Ranger John Wiley takes an offer he can't refuse. The mission: deliver a mysterious package to a Resistance Agent. The reward: a free ride on the newly minted Transcontinental Railroad to the Seven Territories. To his freedom. It seemed like a simple enough plan: deliver the package, ride in luxury on the fastest iron horse in the country, and make a new life for himself away from the clutches of the Yankees and Rebels after him. Until the Agent makes demands of their own. Demands that will put John's life at stake, and may bring the downfall of the United States. Alternate history takes a mystical bent in this action-adventure story.
If you love fantasy grounded in history, grab "Trains and Menace".