Shef had considered all the possible plans he could use to attack Ivar’s camp, weighed them like moves on a chessboard, rejected them one by one. These new ways of making war introduced complexities that could lead to confusion in battle, loss of lives, loss of everything.

It had been much easier when line had clashed with line, battled hand to hand until the stronger side won. He knew that his Vikings were becoming more and more displeased with these new things. Yearned for the certainty of the clash of arms. But the new ways had to be used if Ivar and his weapons were to be defeated. Old and new must blend.

Of course! He must weld the old and the new together like the soft iron and hard steel of a pattern-welded sword, like the sword he had forged and lost in the battle when Edmund was taken. A word formed in his mind.

“Flugstrith!” he cried, leaping to his feet.

“Flugstrith?” said Brand, turning from the fire. “I do not understand.”

“That is how we will fight our battle. We will make it the eldingflugstrith.”

Brand looked disbelieving. “The lightning-battle? I know Thor is with us, but I doubt you can convince him to hurl his thunderbolts to clear our way to victory.”

“It is not the thunderbolts I want. What I want is a battle fast as lightning. The thought is there, Brand; I feel I know what must be done. But I must make it clearer—as clear in my head as if it had already happened.”

Now, waiting in the mist in the dark hour before dawn, Shef felt sure his battle-plan would work. The Vikings had approved it—so had his machine-tending Englishmen. And it had better work. Shef knew that after his rescue of Godive, and then his collapse as the army waited to attack, his credit with the council and the army too was almost exhausted. Things were being kept secret from him. He did not know where Thorvin had gone, nor why Godive had slipped away with him.

As he had before the walls of York, he reflected that in this new style of battle the fighting was the easiest part. Or at least it promised to be so for him. Yet somewhere inside himself his flesh still crawled with a kind of fear: not of death or disgrace. Fear of the dragon he sensed in Ivar’s skin. He fought the fear and repulsion down, glanced at the sky for the first pale streaks of dawn, strained his eyes through the mist to see if he could see the outline of Ivar’s battlements.