There must have been a thousand paths leading out from under the Hill. Even with Skadi’s wolf senses, finding the trail was a difficult task. She did find it, however: it ran alongside their own path, in a small lateral tunnel to which they had not, as yet, gained access. But they were close: once they had even heard their quarry tapping its way quietly along the tunnel at their side, and the white wolf had howled with frustration at finding herself so near, with only a span of rock between themselves and their prey.

But the wolf form tired Skadi if she kept to it for too long, and often she was obliged to shift to her human Aspect, eating ravenously every time she did so. Adam found her human Aspect even more intimidating than her wolf form. At least with a wolf he knew more or less what he was dealing with. And when she was a wolf, there could be no spells or glamours, no sudden explosions, mindblasts, or conjurings. Adam had always hated magic; only now was he beginning to realize quite how much.

Better to deny it all, he thought. Better to tell himself that it was all a dream from which he would soon awake. It made sense. Adam had never been a dreamer, and so it was natural that this-this exceptionally long and troubling dream-should have unnerved him. But a dream was all it was, he thought, and the more he told himself that it was just a dream, the less he thought of his aching back, or the wolf woman at his side, or the impossible things that came to him out of the dark.

By the time they reached the river, Adam Scattergood had come to a decision. It didn’t seem to matter anymore that he’d seen two men die, that he was far from home in the company of wolves, that he had blisters on his feet and rock dust in his lungs, or even that the parson had gone insane.

He was dreaming, that was all.

All he had to do was wake up.

Meanwhile, on the trail of the hunters, the Vanir had made less headway than they would have liked. Not that the trail was difficult to follow-Skadi was making no attempt to shield her colors-but by now the six of them were so little in sympathy with each other that they could hardly agree on anything.

Heimdall and Frey had wanted to shapeshift at once and follow the Huntress in animal guise. But Njörd refused to be left behind, and his favorite Aspect-that of a sea eagle-was hardly practical underground. Freyja refused to shift at all, protesting that there would be no one to carry her clothes for when she returned to her true Aspect, and all of them found it impossible to make Idun understand the urgency of their pursuit, as she stopped repeatedly to marvel over pretty stones or veins of metal in the ground or the black lilies that grew wherever water seeped through the walls.

Frey suggested shapeshifting Idun, the way Loki had once turned her into a hazelnut to flee the clutches of the Ice People. But Bragi wouldn’t hear of it, and finally they proceeded on foot, rather more slowly than they would have wished.

All in all, it had been a long, quarrelsome descent for the six of them, Heimdall maintaining stubbornly that Odin could not have betrayed them, Freyja complaining about the dust, Bragi singing cheery songs that got on everyone’s nerves, Njörd impatient, Frey suspicious, and Idun so lost to any sense of peril that she had to be closely watched at all times to keep her from wandering away. Nevertheless, they crossed the Strond barely an hour after the Huntress, for Skadi had her own problems, in the shape of Nat Parson and Adam Scattergood, both of whom had slowed her down considerably.

Meanwhile, on the far side of the Strond, someone else had been following a trail. It was an easy trail to follow, if you knew where to look; the Captain had shielded his colors, of course, but had left small cantrips at every turn he took, embedded in the tunnel walls or hidden beneath the stones of the path, to show where he was heading.

Not that Sugar had any doubt where he was heading-and only the Captain could be mad or bad enough to believe that any such as he could ever return from such a destination.

But he was the Captain, and Sugar had long since learned not to question his orders.

He’d caught up with Sugar in the food stores, where the goblin was about to settle down with a suckling pig and a yard of ale. At first Sugar hadn’t recognized him, dressed as he was in Crazy Nan’s dress, looking filthy and hunted and close to exhaustion-but Loki had soon got his attention, binding him to obedience with threats and runes and giving instructions in a low, hurried tone, as if afraid of being overheard.

“Why me?” Sugar had asked desperately.

“Because you’re here,” Loki had said. “And because I really don’t have a choice.”

Sugar wished he hadn’t been there. But Loki’s instructions had been quite clear, and so the goblin followed his trail, picking up the spent cantrips as he went and occasionally checking the pouch around his neck-the pouch the Captain had given him, with orders on how to use it if it became necessary.

The Captain was in trouble-that was for sure. Sugar didn’t need any glam to tell him that. In trouble deep-and heading deeper-but still alive, though for how long, Sugar could not say.

Every half hour he checked the pouch. What was inside looked like a common pebble, but Sugar could see the runes on it-Ós, for the Æsir, Bjarkán, and Kaen, the Captain’s own sign-all cleverly put together to make a sigil that was unmistakably Loki’s.

This runestone will show you what to do, he had said, cramming clothes and supplies into a pack. Follow me close-and don’t be seen.

Follow him where? Sugar hadn’t dared to ask. In fact, he hadn’t needed to-the Captain’s expression had already told him more than he wanted to know. Loki was going to Hel, of course-a place Sugar didn’t even like to hear about in stories-and he was taking Maddy with him.

If the stone turns red, the Captain had said, then you’ll know I’m in mortal peril. If it turns black-his scarred lips tightened-then you’ll know I’m beyond reprieve.

Sugar almost wished the stone would turn black. He’d been following the trail for what seemed like days; he was hungry, thirsty, tired, and getting more and more worried at every step. There were rats deep down in the lower tunnels, rats and roaches as big as he was. There were freezing waters and hidden pits; there were geysers and sulfur pits and limestone sinks. But Sugar continued to follow the trail, though even he wasn’t sure anymore whether it was fear, loyalty, or simply that fatal curiosity of his that kept him going, step by step.

The stone had been red for nearly an hour. And it was getting darker.