An ancient treasure. A digital hunt. A family legacy worth fighting for.

When Dr. October Reign helps her newly married sister, Sommer, move into a historic Park Slope brownstone, she expects dust, heirlooms, and family stories—not a centuries-old puzzle waiting in the parlor.

At the center of the home stands a magnificent Spanish Vargueño chest: a priceless family heirloom with a secret three-inch void concealed at its heart. Using modern forensic scanning, October and her cousin Claudio convert the masterpiece into a digital wireframe and uncover an astonishing pattern—the chest is a mirrored blueprint mapped directly to the fortress of the Alhambra across the Atlantic.

A journey to Andalusia for a sacred family blessing ceremony soon spirals into an international treasure hunt. Hidden within the chest's geometry are coordinates to a legendary New World inheritance, and October's family is not the only one searching.

From a fatal confrontation in a bustling Seville market to a near-miss in a Granada plaza, the danger escalates quickly. Fortunately, October does not hunt alone. With her forensic-expert father, August; an NYPD detective cousin, Grant; a Krav Maga-trained grandma and aunts; plus her loyal Balinese cat, Oregano, at her side, she must follow the right historical threads before the network silences her family for good.