Puzzle master Ryan Creed is known around the world for his ability to crack even the most baffling of riddles. But can he resolve a life-and-death mystery when an enigmatic client approaches him to find a kidnapping victim? Journeying to Venice with his multitalented colleague, Sarah Corbet, Ryan finds the mystery deepening. The case, which connects to long-lost Byzantine crown jewels, sends them on a thrilling chase along the streets and canals of Venice!