Norway, AD 958. The Northern realm is once again at war. The exiled sons of Erik Bloodaxe have returned with the help of the Danes and have slain King Hakon. They now come for Hakon's heir, Jarl Trygvi. Trygvi's wife, Astrid, and young son, Olaf, flee their home with the aid of their household warriors. Pursued by the Bloodaxe brood, the family escapes east, through the dark, forested land of the Swedes and across the treacherous East Sea.

Alternate history—1116 AD. Three hundred years of cruel Viking raids have finally united Christian Europe against the pagan Northlands. A great crusade has been called to pacify the wild Norse kingdoms. The banner of the cross has been raised against the North, and all the power and fury of the West rides under it. Ordulf, a talented young German swordsmith, is ripped from his comfortable life and cast into the bloody chaos of the crusade. As fate deals him a cruel blow in the lands of his enemies, he will have to forge a new path through the chaos or be consumed by it.

King Richard the Lionheart is dead, and his brother, John Lackland, sits uneasily upon the throne of England. Across the sea, Prince Louis, heir to the powerful King Philip Augustus of France, looks to King John’s crown with a covetous eye. But King John must be wary of rebellion, as well as invasion, for even his own barons would see their king unseated, and the French pretender put in his place. Thrust amid this tumult is young Estienne Wace, orphan squire to Earl William Marshal – the greatest knight to ever serve the kings of England.

Beobrand is compelled by his brother's almost-certain murder to embark on a quest for revenge in the war-ravaged kingdoms of Northumbria. The land is rife with danger, as warlords vie for supremacy and dominion. In the battles for control of the region, new oaths are made and broken, and loyalties are tested to the limits. With no patronage and no experience, Beobrand must form his own allegiances and learn to fight with sword and shield. Relentless in pursuit of his enemies, he faces challenges which transform him from a boy to a man.

AD 916. In the Orkney Isles, a young woman flees her home to save the life of her unborn child. Eighteen years later, a witch foretells that evil from her past is reaching out again to threaten her son. Outlawed from his home in Iceland, Einar Unnsson is thrown on the mercy of his Uncle, the infamous Jarl Thorfinn 'Skull Cleaver' of Orkney. He joins forces with a Norse-Irish princess and a company of wolfskin-clad warriors to become a player in a deadly game for control of the Irish sea.