Stained Glass (Blackford Oakes, #2)

On assignment to restore a 13th-century German chapel, Blackford Oakes learns that its owner is far more than a charming aristocrat. The charismatic Wintergrin is rousing his countrymen to reunite Germany. Now, Oakes must either pull the fatal switch on his friend, or find a way to change the rules. From the bestselling author of Tucker's Last Stand.