Book four of the Thomas York Series brings Rachel and Thomas back to America from France, responding to the mystery of her Uncle Zach's murder in Napa Valley. Zach's family vineyard becomes a crime scene in the height of the harvest season, as criminals from his teenage past arrive in search of a hidden treasure cache. Daniel Boisvert's dalliance in Paris intensified his relationship with Joseph and Emily. But under his façade as an Interpol agent and his passion and commitment to righteousness with The Angels of Providence, his appearances and disappearances became a growing enigma. With aliases left behind in France, they decided to take a risk by returning to their real names from America, Thomas York and Rachel Redmond. The California murder investigation unravels explosive family secrets and a murderous plot brewing at the vineyard. The mansion leads them through passageways and caves to a Brazilian cache and a trunk of ancient silver coins. The loyalty of the vineyards is challenged by a family member with a destructive scheme of his own.