The Normandy Enigma: Book 2 of The Enigma Series

When an ancient shield surfaces in a Cambridge museum, former soldier and medieval scholar Ian McKnight is drawn back into the shadows of a war he believed he had left behind. Traced to a fourteenth-century castle on the Normandy coast—now firmly in German hands—the discovery points to a secret the Nazis are determined to protect: a revolutionary weapon capable of making Fortress Europe virtually impregnable.

But the shield carries deeper, darker secrets. Etched into its battered surface are...