"Simply unputdownable" -Kiersten Modglin, bestselling author Impossible odds. A relentless pursuit. The brink of world domination. With her husband imprisoned in eternal purgatory, Julia O'Connor and her friends must use every tool in their arsenal to stop Salvatore della Porta from completing his plan of global supremacy through Veritism-the one veritable religion-and save millions of souls from a similar fate. Della Porta's men doggedly track the team across Europe to Asia and back to Venice, as they seek an age-old journal that will either catapult della Porta to triumph or crush him for good. To free the souls and end the madness, they must also unearth an ancient relic that can destroy the Sun Crystal-the key to our past, present, and future. In a final, desperate gambit, Julia and her band of renegades have one last chance to save her husband, liberate the imprisoned souls, and stop della Porta from gaining boundless power. Their every move is a race against destiny in this gripping, globe-spanning historical thriller. "A tour de force in modern fiction." -Gary McAvoy, bestselling author of The Magdalene Chronicles and Vatican Secret Archive Thrillers "The ultimate conspiracy thriller series." -Jayne Ann Krentz, New York Times bestselling author