It is the winter of 714 AD. Pepin the Short, Prince of the Franks, is dead. He leaves behind a kingdom in disarray. His heir, Charles Martel, rots in the dungeons of Cologne.To the south, the Umayyad Caliphate invaded Hispania and easily defeated the Visigoth forces. After consolidating their gains, they will look to the Pyrenees. Who will stop them from spreading Islam to Gaul and beyond?Hammer of God follows Marcus, Thomas, Isabella, and other immortals as they struggle to form a coalition to stand against the impending invasion. Along the way, they will help mold the legendary figure history will remember as Charles the Hammer.The story will take Marcus on a dangerous journey across the sea and into the lands of the Northmen. Will he complete his objective, or will Scandinavia's icy winds prove too strong for the last Roman?