In 1865, Elizabeth Keckley, Mary Todd Lincoln's dressmaker, conspired to change the course of the Civil War. Crossing lines between North and South, the band of conspirators wove a plan that remained undiscovered for more than 150 years until Antique Hunter Anne Hillstrom finds one of Keckley's gowns. She and fellow Antique Hunter CC Muller unravel the mystery that has left a trail of dead bodies, leading to the doorstep of their antique store, Great-Aunt...