Cold-As-Sky said harshly, "I come not to destroy, but to make the world as it once was."

"I don’t understand any of this," Autumn said.

Icebones spoke loudly enough for every mammoth in the Footfall to hear.

"This one is right, that the Tree is a gift of the Lost — their last gift to this world. But the Lost have gone, and the Tree remains. And now its meaning has nothing to do with the Lost, but with the Cycle — with us.

"When Longtusk led his Family away from the advancing Lost and over the great bridge, he reached a land of ice, where nothing could live. But Longtusk had heard of a place called a nunatak. It was a refuge, a place where heat bubbled from the ground, keeping back the ice, and green things lived, even in the depth of winter. There the mammoths survived."

"These are fables for calves," said the Ragged One sourly.

Icebones walked up to the Breathing Tree and stroked its cut-through bark. "Like Longtusk’s Family, we are stranded in a world of ice. But this Footfall is our nunatak." She stamped her feet, challenging the mammoths. "Listen to the song of the rocks. Feel how the ground is shattered and compressed. This is the deepest pit in the world, where the rock has been pushed far down — so far that the inner heat of the world, which lives beneath the plants and soil and rocks, is close. Can you feel it? Can you hear the mud that bubbles, the liquid water that gurgles?"

There were rumbles of doubt and surprise among the gathered mammoths. Icebones could hear them pawing at the ground, listening for the secret songs that welled there.

"The heat is deeper than any of us could reach," said Icebones. "But the roots of this Tree will reach deeper than any mammoth’s trunk. Even yours, Cold-As-Sky. One day this Tree will draw up the heat of the world. It will breathe rich air, and weep water — and the world will live."

"One day?" Boaster asked wistfully.

"Not yet," Icebones said gently. "This Tree, mighty as it towers over us poor mammoths, is but a sapling. Can’t you tell, Boaster?"

The Ragged One trumpeted desperately, "If we destroy the Tree, the Lost will return."

"No," Icebones said. "You showed me yourself how the Lost abandoned this world. Wherever they have gone, it has nothing to do with us. But if you destroy the Tree, you destroy yourselves — and your calves, and their calves after them." She raised her tusks. "This is the truth. If I am the only one opposed, then you must kill me first."

There was an expectant silence, a forest of raised trunks.

Icebones stood alone. She had done all she could. And so she waited in the thin, high sunlight, with the tang of red dust strong in her nostrils.

The small world spun around her, and heat gathered in her head.

Autumn came to stand behind Icebones.

Breeze joined her.

And even the calf faced the crowd of mammoths, his tiny tusks upraised as if he was ready to take them all on.

"We are your Family, Icebones," Autumn said. "On that long journey, I became We. And now we stand with you."

"And me," growled Boaster, adding his massive presence. Icebones touched his trunk with affection and gratitude.

Chaser-Of-Frogs came waddling up, scattering drying mud. "None of you is as handsome as me. But Bones-Of-Ice taught me we are all Cousins, and she spoke the truth — and that truth saved me. I am proud to be your Family, Bones-Of-Ice. I become We."

Autumn trumpeted, "Spiral. Join us."

But Spiral, standing close to the Ice Mammoths, postured and pranced, as if for an invisible audience of Lost.

But now Thunder emerged from the crowd. He approached Spiral. Another young Bull followed him, unknown to Icebones.

Thunder called, "I recall how it was for you on that distant Mountain, Spiral. The Lost pampered you and praised you — but they took away your calves."

"It is true," Autumn said. "Daughter, you recall the Lost with affection. But in truth they hurt you as no mother should be hurt."

Spiral trumpeted, "Leave me alone — oh, leave me alone!"

The other Bull stepped forward. His tusks, though still immature, were long and smooth — and they made neat curls that were, Icebones saw, an exact match of Spiral’s own. He walked awkwardly up to Spiral. He reached out with his trunk, and probed her mouth and trunk tip and breasts. "But I cannot leave you alone," he said thickly. "Have you forgotten me, mother?"

Spiral stood stiff and silent, eyes wide. Then she cried out, pain mixed with joy, and wrapped her trunk around her son’s face.

Icebones pealed, "This is how it is to be mammoth: mother with calf, Families together, herds of Bulls strong and proud. We have no need of the Lost. All we need is each other. Join me now. Join my Clan."

And, like an ice floe slowly melting, the group beyond the Ragged One lost its cohesion. One by one mammoths broke away from the disciplined mass, to join Icebones and her Family.

Spiral came lumbering stiffly to her mother, her trunk still wrapped tightly around the head of the calf that had been taken from her long ago. Autumn embraced her daughter gruffly.

A massive tusker came up, dribbling stinking musth. He tried to get closer to Breeze, whose oestrus smell was still powerful. Curtly Autumn shielded her daughter from his attention.

A part of Icebones was amused that even now the deeper story of life went on.

Thunder joined Icebones. She nuzzled his mouth affectionately. "Well done," she said. "You have made the difference, I think…"

"I thought it would work," Thunder said softly.

"What do you mean?"

"I thought Spiral might have run off to join that ranting fool. I found the calf two days ago. I thought he might come in useful. So I kept him distracted until now."

Icebones was astonished. "How can you think in such a devious way?"

"Just be glad I am on your side," Thunder said modestly.

Cold-As-Sky snorted. "But what of us, Icebones?" The Ice Mammoths were breathing fast, their blue tongues lolling. To them, Icebones recalled, the thin, clean air of the Footfall was dense and clammy and much, much too hot. Cold-As-Sky said, "If I join you, I die. If the Tree makes your world, it destroys ours."

Autumn turned on the Ragged One. "You see why they followed you? Even these strange creatures cared nothing for the Lost, for your dreams. All they wanted was to smash the Tree, for they understood its importance, as Icebones did. You are a fool — you let them use you—"

Icebones touched Autumn’s trunk to still her.

Thunder said unexpectedly, "But you need not die, Cold-As-Sky."

The Ice Mammoths inspected him suspiciously.

In brief phrases — illustrated with much stamping and growling — he told them of the Fire Mountain, where he had been born. "It is high," he said. "Higher than your High Plains, the highest place in all the world. No matter how hard this Tree breathes, that Mountain’s summit will still be a place of cold and thinness and ice."

Cold-As-Sky said to Icebones, "Is this true?"

Icebones glanced at the Ragged One. "She knows it to be true. We walked to the summit, and saw breathing trees… Yes, you could live there, Cold-As-Sky."

"But it is half a world away."

Now Breeze’s calf stepped forward. "I will lead you," said Woodsmoke brightly. "I have walked half the world. I will show you how."

Breeze cuffed him affectionately but proudly, for he stood tall and determined.

Cold-As-Sky rumbled, and her Ice Mammoths clustered around her.

Then, hesitantly, Cold-As-Sky stepped forward and stood behind Icebones. Her Family followed.

The Ice Mammoths smelled of ice and iron.

At last the Ragged One was left isolated.

It is done, Icebones thought. Her sense of relief was overwhelming, leaving her weak.