Time Passage by Elyse Douglas

Can Cindy Survive the Past to Find Her Future?
In 2022, Cindy Downing, a 25-year-old woman with a troubled past, kills her billionaire boyfriend in self-defense and flees, boarding an Amtrak train headed for Chicago. While passing through a tunnel, the train plunges through a burst of light—into another time and place.
When Cindy regains consciousness, she is shocked to find herself on a 19th-century steam locomotive heading to Denver, Colorado. A scheming woman has switched Cindy’s identity, and she’s forced to be a mail-order bride contracted to marry a cruel, wealthy man who still mourns his late wife’s untimely and mysterious death.
As Cindy struggles to survive her strange new reality, she meets the attractive Marshal Bryce Vance, and sparks fly. Soon, Cindy is fighting for her life, desperately seeking a way to return to 2022.
Is Cindy trapped in 1880? Is it even possible for her to return to 2022? Even if she discovers a way to return, will she be tried for murder?