So the iron-workers made not only ingots of pig-iron and easily-traded goods like axe-heads. They also, following Udd’s direction, made bow after bow of spring-steel, cocking-handles, iron quarrels. Men and women carved wooden parts, set them in piles. Every few days they would turn from that task and assemble them. Shef noted how much quicker it was, say, to make a dozen sets of parts and then assemble them all the same way, instead of following the time-honored procedure of working on one implement till it was done, and then starting the next one. The pile of crossbows grew, well beyond the numbers they had to use them.
“We can always sell them,” said Herjolf cheerfully.
“That is looking on the bright side,” said Shef.
Of all the innovations Udd had brought, though, none interested Thorvin and the other smiths more than the case-hardened steel. They had borrowed Cuthred’s shield repeatedly, testing its powers, and been amazed. Ideas sprang up quickly. Make mail of the strange hard metal. It proved impossible to work, too hard to bend, too hard to fit together. An attempt to take a mail-shirt and case-harden it as one unit produced only an extremely expensive lump of rings half-welded together, the waste of a month’s work for a skilled smith, as Herjolf pointed out. Flat plates were relatively easy to make, but useless once made. People did not have flat surfaces to fit them over. The metal seemed to have no use in war except for shields, and even then it had disadvantages. Shields were convex both because missiles tended to fly off such a surface, and—no trivial consideration—because a rounded shield could be carried on the shoulder. No-one, not even Brand or Cuthred, could march all day holding a shield up on his arm alone. Most deaths in battle went to the side whose shield-arms tired first.
The hardened metal, while fascinating, seemed to be practically useless in war. Yet Shef could not shake off the words that Svipdag the prisoner had hurled at him. “The only man who could get through what waits for you would need an iron skin.” He knew who would be waiting for him at the Braethraborg, Where was his iron skin? And how to carry it?
Shef found himself talking, often, to Hagbarth. Hagbarth was interested especially in the details of the various new types of ship that Shef had sailed or had encountered. He had nodded consideringly over Ordlaf’s design for the English mule-armed “battleships,” and pressed Shef again and again for details of the short action with the Frani Ormr, a famous craft in her own right, the greatest warship of the North, of the traditional ocean-going type.
“It’s no wonder you were outsailed by her,” he remarked. “I am not sure even my own Aurvendill would have done better. Faster by sail, I dare say. But the more oars you have for foot of keel, the faster you are rowing. In enclosed waters, Frani Ormr might be better.”
He was interested also in the design of the two-masted Crane, about which Shef could tell him a good deal, having helped to dismantle her for planks and parts. King Halvdan’s coastal patrol ships were familiar to Hagbarth in any event. He could make a good guess at how one would have been strengthened to take catapult shock. It was the sailing qualities of the two masts that puzzled him. Yet, Shef assured him, the Crane had sailed, and sailed well. The Norfolk, on the other hand, had been something of a tub.
“Now we’ve got the idea of putting the mules on wheels, to rotate them,” Cwicca said one meal-time. “What we’d really like would be a mule at each end, front and back, high up. But I suppose all that weight high up would make the boat tip over, like, if the wind came from one side. Even the Norfolk wasn’t very high out of the water.”
Hagbarth, listening, snorted beer through his nostrils. ” ‘Make the boat tip over, like,’ ” he gasped. ” ‘Each end, front and back.’ It’s well for you you’re not at sea and the sea-trolls listening. They punish sailors who do not use the proper haf words, the words to be said at sea.”