First-year resident Dr. Lisbeth Hastings is too busy to take her father's bizarre summons seriously. But when a tragic mistake puts her career in jeopardy, answering her father's call seems her only hope of redeeming the devastating failure that her life has become.

While exploring the haunting cave at her father's archaeological dig, Lisbeth falls through a hidden hole, awakening to find herself the object of a slave auction and the ruins of Roman Carthage inexplicably restored to a thriving metropolis. Is it possible that she's traveled back in time, and, if so, how can she find her way back home?

Cyprian Thascius believes God called him to rescue the mysterious woman from the slave trader's cell. What he doesn't understand is why saving the church of his newfound faith requires him to marry a woman whose peculiar ways could get him killed. But who is he to question God?

 As their different worlds collide, it sparks an intense attraction that unites Lisbeth and Cyprian in a battle against a deadly epidemic. Even as they confront persecution, uncover buried secrets, and ignite the beginnings of a medical revolution, Roman wrath threatens to separate them forever. Can they find their way to each other through all these obstacles? Or are the eighteen hundred years between them too far to leap?