An Extraordinary Union by Alyssa Cole
An engrossing historical romance featuring spies during the American Civil War. Born into slavery, Elle Burns is now a free woman. In 1862, she goes undercover, working as a slave in the household of a Confederate senator in Richmond, Virginia. She meets Pinkerton Secret Service Agent Malcolm McCall, a Scottish immigrant, and the pair form an uneasy alliance. As their relationship (both professional and personal) grows, Elle and Malcolm must navigate the uneasy world of race, politics, and war.