On his deathbed, billionaire philanthropist Henry Calhoun entrusts a silver crucifix pendant to his dearly beloved great grandson, Adam, and entreats him to keep his possession of it a secret. For, he says, in the small chamber at the back of it rests the broken tip from one of the Holy Nails that pierced Christ’s flesh. The legacy soon becomes a nightmare bequest as mystery, murder and miracles ensue, with shadowy figures and thugs for hire crossing paths with Vatican emissaries and forbidden archaeological excavations. As his family implodes, Doctor Adam Calhoun fights not only for his own life, but that of those he loves. In this fast-paced psychological thriller, betrayal and jealousy turn allies into enemies as the true power of the pendant, and the iron relic it protects, portends a second coming.