But it was a dream, and in dreams, sometimes, you have no choices: either there are no decisions to be made, or they were made for you long before ever the dream began. Shadow continued to climb, pulling himself up. His hands hurt. Bone popped and crushed and fragmented under his bare feet, cutting them painfully. The wind tugged at him, and he pressed himself to the spire, and he continued to climb the tower.
It was made of only one kind of bone, he realized, repeated over and over. Each of the bones was dry and ball-like. For a moment he had imagined they might be old yellow shells or the eggs of some dreadful bird. But another flare of lightning told him differently: they had holes for eyes, and they had teeth, which grinned without humor.
Somewhere birds were calling. Rain spattered his face.
He was hundreds of feet above the ground, clinging to the side of the tower of skulls, while flashes of lightning burned in the wings of the shadowy birds who circled the spire—enormous black, condor-like birds, each with a ruff of white at its neck. They were huge, graceful, awful birds, and the beats of their wings crashed like thunder on the night air.
They were circling the spire.
They must be fifteen, twenty feet from wingtip to wingtip, thought Shadow.
Then the first bird swung out of its glide toward him, blue lightning crackling in its wings. He pushed himself into a crevice of skulls, hollow eye-holes stared at him, a clutter of ivory teeth smiled at him, but he kept climbing, pulling himself up the mountain of skulls, every sharp edge cutting into his skin, feeling revulsion and terror and awe.
Another bird came at him, and one hand-sized talon sank into his arm.
He reached out and tried to grasp a feather from its wing. If he returned to his tribe without a thunderbird’s feather he would be disgraced, he would never be a man, but the bird pulled up, so that he could not grasp even one feather. The thunderbird loosened its grip and swung back onto the wind. Shadow continued to climb.
There must be a thousand skulls, thought Shadow.
A thousand thousand. And not all of them are human. He stood at last on the top of the spire, the great birds, the thunderbirds, circling him slowly, navigating the gusts of the storm with tiny flicks of their wings.He heard a voice, the voice of the buffalo man, calling to him on the wind, telling him who the skulls belonged to…