On an ordinary morning in Mississippi, a gunman enters a women’s health clinic and takes everyone inside hostage. As police surround the building, negotiator Hugh McElroy is shocked to discover that one of the captives is his fifteen-year-old daughter, Wren.

Told in reverse, moving hour by hour back through the day, the novel reveals how each person—patients, staff, protesters, and the gunman—came to be there. Through their intertwined stories, A Spark of Light explores the complexity of choice, the bonds between parents and children, and the moral questions at the heart of reproductive rights.