Having escaped from a secret holding cell in the Masonic Temple, missionary Allen Hartman is on the Natchez Trace after rescuing his friend from slavery on a swamp plantation. But when the evil La Marque sends an assassin to kill him and forcibly return Deacon Abraham to captivity, Allen must battle an onslaught of dark spiritual forces. Will Allen withstand this attack of powerful sorcery? Can he clear his name from false accusations by religious leaders? Will he follow the river west to resume his mission and realize a hoped-for future with Moon Cloud, the Arapaho woman he loves? In book three of the Two Rivers Trilogy, Allen Hartman learns that "greater love" has a costly price as he battles evil in the Lord's strength.