The next morning, the Fireheads nursing sore heads and crammed bellies, the party assembled in a great column and began its sweep to the north. With Crocus on his back, Longtusk led the slow advance.
Since that first encounter with the Whiteskins two years before there had been several skirmishes with other bands of Fireheads. Crocus’s tribe, settled for several years in their township of mammoth-bone huts, were well-fed, healthy and strong, and were able to fend off the attacks — mounted mostly by bands of desperate refugees, forced north from the overcrowded southern lands.
But this wouldn’t last forever, predicted Walks With Thunder.
"There is no limit to the number of Fireheads who might take it into their heads to come bubbling up from the south. We can defend ourselves and this settlement as long as the numbers are right. But eventually they will overrun us."
"And then?" said Longtusk.
"And then we will have to flee — go north once again, as we have done before, and find a new and empty land. And this is what Crocus, in her wisdom, knows she must plan for; it is surely going to come in her time as Matriarch."
So it was that Crocus was remaking herself. Still young, already skilled in hunting techniques, she had learned to use the tribe’s weapons with as much skill and daring as any of the buck male warriors. And she had learned to command, to force her tribe to accept the harshest of realities.
But Longtusk thought he detected a growing hardness in her — a hardness that, when he thought of the affectionate cub who had befriended him, saddened him.
As for himself, Longtusk was now bigger and stronger than any of the mastodonts. He was no longer the butt of jokes and taunts in the stockade; no longer did the mastodonts call constant attention to his differences, his dense brown hair and strange grinding teeth. Now he was Longtusk, warrior Bull, and his immense tusks, scarred by use, were the envy of the herd.
Only Walks With Thunder still called him "little grazer" — but Longtusk didn’t mind that.
And, such was Crocus’s skill in riding Longtusk — and so potent was the mammoth’s own intelligence and courage — that the stunning, unexpected combination of warrior-queen and woolly mammoth leading the column could, said Walks With Thunder, prove to be the Fireheads’ most important weapon of all.
During the long march, Longtusk’s days were arduous. He was the first to break the new ground, and he had to be constantly on the alert for danger — not just from potential foes, but also the natural traps of the changing landscape. He paid careful attention to the deep wash of sound which echoed through the Earth in response to the mastodonts’ heavy footsteps, and avoided the worst of the difficulties.
And, of course, he had to seek out food as he traveled. Firehead Matriarch on his back or not, he still needed to cram the steppe grasses and herbs into his mouth for most of every day. But the mastodonts preferred trees and shrubs, and if he found a particularly fine stand of trees he would trumpet to alert the others.
A few days out of the settlement a great storm swept down on them. The wind swirled and gusted, carrying sand from the frozen deserts at the fringe of the icecap, hundreds of days’ walk away, to lash at the mastodonts’ eyes and mouths, as if mocking their puny progress. Crocus walked beside Longtusk, blinded and buffeted, clinging to his long belly hairs.
At last the storm blew itself out, and they emerged into calmness under an eerie blue sky.
They found a stand of young trees that had been utterly demolished by the winds’ ferocity. The mastodonts browsed the fallen branches and tumbled trunks, welcoming this unexpected bounty.
Walks With Thunder, his mouth crammed with green leaves, came to Longtusk. "Look over there. To the east."
Longtusk turned and squinted. It was unusual for a mastodont to tell another to "look," so poor was their eyesight compared to other senses.
The sun, low in the south, cast long shadows across the empty land. At length Longtusk made out something: a blur of motion, white on blue, against the huge sky.
"Birds?"
"Yes. Geese, judging from their honking. But the important thing is where they come from."
"The northeast," Longtusk said. "But that’s impossible. There is only ice there, and nothing lives."
"Not quite." Walks With Thunder absently tucked leaves deeper into his mouth. "This is a neck of land, lying between great continents to west and east. In the eastern lands, it is said, the ice has pushed much farther south than in the west. But there are legends of places, called nunataks — refuges — islands in the ice, where living things can survive."
"The ice would cover them over. Everything would freeze and die."
"Possibly," said Thunder placidly. "But in that case, how do you explain those geese?"
"It is just a legend," Longtusk protested.
Thunder curled his trunk over Longtusk’s scalp affectionately. "The world is a big place, and it contains many mysteries. Who knows what fragment of rumor will save our lives in the future?" He saw Crocus approaching. "And the biggest mystery of all," he grumbled wearily, "is how I can persuade these old bones to plod on for another day. Lead on, Longtusk; lead on…"
The geese flew overhead, squawking. They were molting, and when they had passed, white fathers fell from the sky all around Longtusk, like snowflakes.
As the days wore on they traveled farther and farther from the settlement.
Longtusk hadn’t been this far north since he had first been captured by the Fireheads. That had been many years ago, and back then he had been little more than a confused calf.
But he was sure that the land had changed.
There were many more stands of trees than he recalled: spruce and pine and fir, growing taller than any of the dwarf willows and birches that had once inhabited this windswept plain. And the steppe’s complex mosaic of vegetation had been replaced by longer grass — great dull swathes of it that rippled in the wind, grass that had crowded out many of the herbs and low trees and flowers which had once illuminated the landscape. It was grass that the mastodonts consumed with relish. But for Longtusk the grass was thin, greasy stuff that clogged his bowels and made his dung slippery and smelly.
And it was warmer — much warmer. It seemed he couldn’t shed his winter coat quickly enough, and Crocus grumbled at the hair which flew into her face. But she did not complain when he sought out the snow that still lingered in shaded hollows and scooped it into his mouth to cool himself.
The world seemed a huge place, massive, imperturbable; it was hard to believe that — just as the Matriarchs had foreseen, at his Clan’s Gathering so long ago — such dramatic changes could happen so quickly. And yet it must be true, for even he, young as he was, recalled a time when the land had been different.
It was an uneasy thought.
He had been separated from his Family before they had a chance to teach him about the landscape — where to find water in the winter, how to dig out the best salt licks. He had had to rely on the mastodonts for such instruction.
But such wisdom, passed from generation to generation, was acquired by long experience. And if the land was changing so quickly — so dramatically within the lifetime of a mammoth — what use was the wisdom of the years?
And in that case, what might have become of his Family?
He shuddered and rumbled, and he felt Crocus pat him, aware of his unease.
After several more days Crocus guided Longtusk down a sharp incline toward lower ground. He found himself in a valley through which a fat, strong glacial river gushed, its waters curdled white with rock flour. The column of mastodonts crept cautiously after him, avoiding the sharp gravel patches and slippery mud slopes he pointed out.