Luci de Foix is an archeologist and artifact expert who travels extensively to countries attempting to save their priceless treasures. On a trip to Greece, she discovers a clay shard with writings from an ancient society that disappeared during an earthquake on their island of Helike. When her best friend and adopted sister, Sarah, is kidnapped by a ruthless Russian oligarch determined to find the legendary treasure of Helike, they struggle to survive against terrifying odds, only to discover a secret that governments will kill for ... even her own.