As the ox-carts creaked with agonizing slowness round behind the Wayman position, Shef saw faces turning. Wondering whether he was fleeing from battle. Fleeing in ox-carts? Some of them he recognized: Magnus, Kolbein and other Hebrideans, clustered at the rear in reserve. Brand had put them there, saying their weapons would be difficult to fence with in a packed mass.

“Magnus! I want six of your men with each cart for close defense.”

“If we do that there’ll be no reserve left.”

“Do it and we won’t need a reserve.”

Halberdiers closed round the carts as Shef led them in a long sweep round the flanks of both battling armies, first the Waymen, then the Ragnarsson troops gaping in surprise. But with battle joined, unable to see the lumbering carts as anything but a distraction. At last they were in a position well to the rear right flank of the Ragnarsson army.

“Stop. Wheel the carts left. Chock the wheels. No! Don’t unload the machines. We’ll shoot from inside the carts.

“Now. Drop the tilts.” Halberdiers whipped out the pins, let the wagon tilts fall forward. The wound and loaded catapults trained round.

Shef stared carefully at the scene in front of him. The two battle-lines were locked along a two-hundred-yard front, making no attempt to outmaneuver each other. But at the center of the Ragnarsson line Ivar had bunched a mass of men, twenty-deep, pushing steadily forward, aiming to break their outnumbered enemy by sheer weight. Above the central mass flew his standard. There was the place to aim—not at the front, where Shef might hit his own men.

“Aim for the center. Aim for the Coiling Worm. Shoot!”

The catapults leapt in the air as they shot, their recoil on hard planks instead of soft ground sending them skidding. The thralls seized them and ran them back again, lever-men struggling to fit the winders back in place.

Round the Worm Standard of Ivar there was chaos. In the throng of milling men Shef saw for an instant a long spike with two bodies threaded on it like larks on a spit. There was another man threshing desperately to free a snapped javelin-head from his arm. Faces were turning, and not just faces. He could see shields as well, as men realized the attack had come somehow from their rear and turned bodily to meet it. The Worm Standard still waved, its bearer still protected by the ranks of bodies that had been behind it. Reloading complete, Shef screamed the command.

“Shoot!” .

This time the Worm went down, to a roar of delight from the Wayman center. Someone seized it, heaved it defiantly up once more, but the Ragnarsson center had yielded five blood-soaked yards, the men in it trying to keep their footing as they stumbled back over wet soil and their own dead. But there were men running now toward the carts.

“Change target?” shouted a captain, pointing at the advancing men.