Once more he considered reverting to his fiery Aspect, but the cold was already too intense. Shifting to his fire form would simply burn up his glam all the faster, leaving him helpless.

He needed rest. He needed warmth. He had already fallen half a dozen times and found it harder on each occasion to struggle to his feet. At last he fell and could not stand up again, and he realized that he no longer had a choice: the possibility of his freezing to death by far surpassed the risk of his being seen.

He cast Sól but clumsily and winced at the pain in his frozen fingers. Shifting to hawk guise was no longer an option; his strength was gone, and he was down to his last cantrips. The rune lit up but gave little heat.

Loki cursed and tried again. This time the warmth was more focused, a glowing ball the size of a small apple that shone against the dull snow. He held the fireball close, and little by little he felt the life return to his crippled hands. Pain came with it. Loki yelped: it felt like hot needles.

Perhaps it was this cry that alerted the cat, perhaps the glow; in any case it came, and it was large-five times larger than a common wildcat and brindled brown as mountain stone. Its eyes were yellow and hungry, its claws soft-sheathed steel in the shaggy pads of its feet.

Further down the slopes, where prey was plentiful, it would most likely have given Loki a wide berth. But here on the glacier prey was scarce. This human-helpless, on his knees in the snow-seemed like a gift.

The cat moved closer. Loki, who could feel the sensation returning to his feet as well as his fingers, tried to stand up, then fell once more, cursing.

The cat moved closer still, wary of the fireball between Loki’s hands, wondering in its dim fashion if this were a weapon that might harm it if it sprang. Loki did not see it and continued to curse as Sól sent its knives into his fingers.

He might be big, the cat thought, but he was slow, he was tired, and more importantly, he was on the ground, where his size would be of no advantage to him.

All in all, it fancied its chances.

The cat had never attacked a human before. If it had, it would have gone for the face and would most likely have killed him with a single bite. Instead it leaped onto Loki’s back, caught him by the scruff of his neck, and tried to roll him over.

He acted fast. Surprisingly fast for a human-though Loki was not precisely human, the cat sensed-and rather than try to grapple with his attacker, the man hauled himself upright, ignoring the claws that gouged into his ribs, and deliberately flung himself as hard as he could onto his back.

For a second the cat was stunned. Its jaws loosened and Loki broke free, boosting himself away and onto his knees so that now he faced the creature head to head, his fire green eyes reflecting its yellow ones, his teeth bared.

The cat squalled, a terrible, ratcheting sound of rage and frustration. It faced him, ready to spring if he made the smallest move. Such battles of will could last for hours among the cat’s own kind, but it sensed that the human’s strength would fail him before long.

Loki knew it too. Numbed as he was with cold, it was hard for him to judge the damage done by the cat’s claws, but he could feel warmth flowing down his back and knew he might collapse at any time. He had to act-and quickly.

Eyes still locked on those of the cat, he held out his hand. In it shone Sól, fading a little but still alight. Very gently Loki moved from his knees to the balls of his feet, so that now he was squatting on his haunches, the sun rune outstretched. The cat squalled and bristled, ready to pounce.

But Loki pounced first. With an effort he sprang to his feet, and at the same time, gathering the last of his glamour, he flung Sól-now a white-hot firebrand-at the snarling creature.

The cat fled. Loki saw it go, a streak against the glacier’s breadth, and heard its cry of defiance as it went. It did not go as far as he would have liked, however, but settled at a distance of about three hundred yards, where the edge of the glacier met a nest of rock.

Here it waited, immobile. It could smell blood-and that made it growl softly with frustrated hunger-but more importantly, it could smell weakness. The human was wounded. At some point soon he would relax his guard.

And so it watched, and when Loki began once more to climb, slowly and laboriously, toward the dim blue cleft between the Sleepers, the cat climbed with him, keeping its distance but gradually closing as his steps faltered, his shoulders slumped, and at last he fell, headfirst and senseless, into the moonlit snow.

The face was buried deep, half obscured by tiny rosettes of white frost. But it was unmistakably a woman’s face, white and remote beneath the ice.

“Who is she?” said Maddy at last. With her hands she had managed to clear some of the frost. Underneath, the ice was dark and clear, like lake water. Beneath it the woman lay, slim as a sword, hands crossed against her breast, her pale, cropped hair fanning out into ice crystals around her.

“See for yourself,” said the Whisperer.

Maddy cast Bjarkán with a hand that shook. The runelight seemed to pick out every gleam, every glamour, every rune carved against the surface of the ice block, with a radiance that hurt her eyes.

Through it she found she could see the woman clearly: her face was still and coldly beautiful, with the high cheekbones and full lips that were typical of the northern folk. She wore knee-high boots and a tunic, belted at the waist, and at her belt there hung a long white knife.

But the most startling thing was the woman’s signature. It was a chilly, piercing blue, like the ice itself, and although it was sheathed tight around her body in a sleeping pattern, it was unmistakably alive. Its gleam was only fractionally less than that of the mark on the woman’s right thigh:

The runemark Isa-Ice.

Now Maddy could see the glamours that ringed the ice block: a complex chain of runes that strongly resembled the net in which Loki had imprisoned the Whisperer.

“So he told the truth,” said Maddy softly. “There are more of us.”

She realized that she had been afraid to believe it. Now the joy of knowing that she was not alone made her want to scream like a savage.

She did not-remembering that ice cascade poised above her head-but she clenched her fists in fierce delight. And now she could see, further down the hall, more of the ice blocks, their pillars standing out like sentinels in the gleaming hall. Seven of them, all in a line, like four-poster beds, their columns festooned with dripping icicles, their coverlets of frost.

“Who are they?” said Maddy.

“The Sleepers,” said the Whisperer. “Though not for long.”

Once more Maddy thought of the fire pit hall. “Did Loki do this?”

“No,” it said.

“Does One-Eye know?”

“Oh yes. He knows.”

“Then why didn’t he tell me?”

“I’m an oracle,” said the Whisperer, “not a bloody mind reader.”

Once more Maddy looked at the ice woman. “Who is she?” she said.

“Ask her,” said the Whisperer.

“How?”

“In the usual way.”

“You mean-wake her up?”

“Why not?” it said. “You’re going to do it eventually.”

Maddy was sorely tempted to try. She remembered the Whisperer’s prophecy: how the Sleepers would awake and Thor would be freed from Netherworld-on the other hand, she knew it to be devious, and she didn’t like its superior tone.

“I’m not doing anything,” she said, “unless you tell me who they are.”

“They are the Vanir,” the Whisperer said. “Hidden here since Ragnarók. Surt’s shadow had fallen across the Worlds; the Æsir had fallen, one by one. The Vanir, defeated, fell back and hid, and with the last of their glamours they created this half haven, half tomb in the hope that one day they might be reawakened in the new world, the new Asgard.”