As the Civil War rages between the states, a courageous pair of spies plunge fearlessly into a maelstrom of ignorance, deceit, and danger, combining their unique skills to alter the course of history and break the chains of the past . . . Elle Burns is a former slave with a passion for justice and an eidetic memory. Trading in her life of freedom in Massachusetts, she returns to the indignity of slavery in the South—to spy for the Union Army. Malcolm McCall is a detective for Pinkerton's Secret Service. Subterfuge is his calling, but he's facing his deadliest mission yet—risking his life to infiltrate a Rebel enclave in Virginia. Two undercover agents who share a common cause—and an undeniable attraction—Malcolm and Elle join forces when they discover a plot that could turn the tide of the war in the Confederacy's favor. Caught in a tightening web of wartime intrigue, and fighting a fiery and forbidden love, Malcolm and Elle must make their boldest move to preserve the Union at any cost—even if it means losing each other...

The Civil War has turned neighbor against neighbor—but for one scientist spy and her philosopher soldier, war could bind them together . . . For three years of the War Between the States, Marlie Lynch has helped the cause in peace: with coded letters about anti-Rebel uprisings in her Carolina woods, tisanes and poultices for Union prisoners, and silent aid to fleeing slave and Freeman alike. Her formerly enslaved mother's traditions and the name of a white father she never knew have protected her—until the vicious Confederate Home Guard claims Marlie's home for their new base of operations in the guerilla war against Southern resistors of the Rebel cause. Unbeknowst to those under her roof, escaped prisoner Ewan McCall is sheltering in her laboratory. Seemingly a quiet philosopher, Ewan has his own history with the cruel captain of the Home Guard, and a thoughtful but unbending strength Marlie finds irresistible. When the revelation of a stunning family secret places Marlie's freedom on the line, she and Ewan have to run for their lives into the hostile Carolina night. Following the path of the Underground Railroad, they find themselves caught up in a vicious battle that could dash their hopes of love—and freedom—before they ever cross state lines.

Daniel Cumberland’s uneventful life as a freed man in Massachusetts ended the night he was kidnapped and sold into slavery. To then have his freedom restored by the very man who stole his beloved’s heart is almost too much to bear. When he’s offered entry into the Loyal League, the covert organization of spies who helped free him, Daniel seizes the opportunity to help take down the Confederacy and vent the rage that consumes him. When the Union Army occupies Janeta Sanchez’s small Florida town, her family’s goodwill and ties to Cuba fail to protect her father from being unjustly imprisoned for treason. To ensure her father’s release, Janeta is made an offer she can’t refuse: spy for the Confederacy. Driven by a desire for vengeance and the hope of saving her family, she agrees to infiltrate the Loyal League as a double agent. Daniel is both aggravated and intrigued by the headstrong recruit. For the first time in months, he feels something other than anger, but a partner means being accountable, and Daniel’s secret plan to settle a vendetta and strike a blow for the Union can be entrusted to no one. As Janeta and Daniel track Jefferson Davis on his tour of the South, their dual hidden missions are threatened by the ghosts of their pasts and a growing mutual attraction—that might be their only hope for the future.