Cologne Infernal

For centuries, a deadly secret has lain hidden within Cologne Cathedral.

When a cryptic medieval message is discovered during the construction of the new tower entrance, events spiral out of control — right at the start of street carnival in 2009.

Young American symbologist Claire and her Cologne friend Gereon are thrust into a breathless chase through the old city. An ancient threat awakens, and suddenly not only the cathedral, but the entire city of Cologne stands on the brink of disast...