“Yes,” said Brand judiciously. “There’re lots of theories about berserks. I don’t take much notice of most of them, myself.”
They were riding along the crest of a ridge, as they had been for some days now, first winding up, then seemingly more or less on a level, now perhaps with the down-stretches lasting longer than the ups. To their right lay a long sweep of valleys with water glinting in them and here and there the bright green of fresh grass. To their left the land fell more sharply, into a waste of fir and pine, and they could see little ahead but the ridge rising and falling, with chain after chain of blue mountains lifting into the far distance. The air was cold and keen, but filled the lungs with life and the sharp smell of the pine-woods.
Behind Brand and Shef, and the interested Hund riding close beside them, a string of ponies stretched out for a hundred yards, with people walking here and there among the riders. More people than there had been when they left Flaa the week before. As the English had made their way through a now-deserted countryside, a countryside that emptied before them, figures had crept out to join them, emerging from the woods by the road, stalking softly into the firelight when they camped: runaway slaves with the collars still round their necks, most of them English-speaking. Drawn by the rumor of the free folk moving through the land, headed by a giant and a one-eyed king, and guarded by a mad berserk of their own race. Most of the ones who had come in were men, and not all of them thralls or churls by birth. It took determination and courage to break free from one’s masters in an alien country: and when they could get them, the Vikings were very ready to enslave former thanes or warriors, valuing them for their strength. After brief debate, Shef had agreed to accept all those who could find their way to them, though he would not search farms or pursue their owners to liberate the countryside. Men who could break free, and women too, might be an increase in force. There was no hope any more of passing unnoticed.
“Some people say the word really means ‘bare-sarks,’ ” Brand went on. ” ‘Bare-shirts,’ that is, because they’ll fight in their shirts alone, with no armor. I mean, you saw our mad friend back there—” he jerked a thumb at Cuthred, who now, amazingly, was well enough recovered to sit on a pony. He was riding near the back of the cortege, well-surrounded and escorted by those he seemed able to tolerate. “No defense at all, and no interest in it. If we’d put armor on him it’s my belief he’d have torn it off. So ‘bare-shirt’ makes a kind of sense.
“But there’s others say it’s really ‘bear-sarks,’ like ‘bear-shirts.’ Because they act like bears, that just come at you and can’t be frightened off. What they mean is that they’re really, you know—” Brand looked round cautiously and dropped his voice, “like Ivar, not men of one skin. They change into another shape, sort of, when the fit takes them.”
“You mean they’re werewolves,” suggested Shef.
“Were-bears, yes,” Brand agreed. “But that doesn’t make sense, really. The were-shape runs in families, for one thing. But a berserk can be anybody.”
“Can this condition be created by drugs?” asked Hund. “It seems to me that there are several things that can take a man out of himself, can make him think he is a bear, for one thing. In small quantities, the juice of the nightshade berry, though that is also a deadly poison. Some say you can make an ointment of it mixed with hog-lard, and smear it on. It makes people think they are flying out of their bodies. And there are other growths with similar effect.”
“Maybe,” Brand said. “But you know that wasn’t the case with our madman. He’d had nothing but what we ate, and he was as mad as ever before we even fed him.
“No, I don’t think it’s really very hard to understand at all. Some men like fighting. I do myself—not as much as I used to, maybe. But when you like it, and you’re used to it, and you’re good at it, the noise and the excitement lifts you, you can feel it swelling inside you, and at its peak you feel you are twice as strong and twice as quick as you usually are, and you do things before you know you’ve done them. Being a berserk is like that, only much, much more. And I think you can only get to that if you have some special reason inside you. Because most men, even when they’re caught up with the excitement, remember somewhere deep down what it feels like when you get hit, and how you don’t want to go home with just a stump, or what your friends look like when you shovel them into a hole. So they keep using their shields and their armor. But a berserk’s forgotten all that. To be a berserk, deep down, you have to not want to live. You have to hate yourself. I’ve known some men like that, born like that or made like that. We all know why Cuthred there hates himself and doesn’t want to live. He can’t bear the shame of what they did to him. He’s only happy when he’s wiping it out on someone else.”