After learning of her family's ties to the slaveholding South, Sylvia Compson scours her attic for clues and discovers a window into the world of her ancestors: the memoir of her great-grandfather's spinster sister, Gerda Bergstrom. Gerda's memoir chronicles the founding of Elm Creek Manor and the tumultuous years when Hans, Anneke, and Gerda Bergstrom sheltered fugitive slaves within its walls, using quilts as a signal of sanctuary. But little did the staunchly abolitionist Gerda know that a traitor was among them, placing the Bergstroms in grave danger and leading to family discord, betrayal, and a secret held for generations. With the help of the Elm Creek Quilters and clues hidden within antique quilts discovered in the manor's attic, Sylvia stitches together the pieces of her past and decodes the true nature of the Bergstrom legacy.