“I think this was a place to hide,” Alec said in a hushed voice. “Some sort of last barricade where whoever lived here once would be safe from the demons.”

“Whoever lived here once knew rune magic,” Clary said. “I don’t recognize them all, but I can feel what they mean. They’re holy runes, like Raziel’s.”

Jace slung his pack off his shoulders and let it slide to the ground. “We’re sleeping here tonight.”

Alec looked dubious. “Are you sure that’s safe?”

“We’ll scout the tunnels,” Jace said. “Clary, come with me. Isabelle, Simon, take the east corridor.” He frowned. “Well, we’re going to call it the east corridor. Here’s hoping this is still accurate in the demon realms.” He tapped the compass rune on his forearm, which was one of the first Marks most Shadowhunters received.

Isabelle dropped her pack, took out two seraph blades, and slid them into holsters on her back. “Fine.”

“I’ll go with you,” Alec said, looking at Isabelle and Simon with suspicious eyes.

“If you must,” said Isabelle with exaggerated indifference. “I should warn you we’ll be making out in the dark. Big, sloppy make-outage.”

Simon looked startled. “We are—” he began, but Isabelle stomped on his toe, and he quieted.

“ ‘Make-outage’?” said Clary. “Is that a word?”

Alec looked ill. “I suppose I could stay here.”

Jace grinned and tossed him a stele. “Make a fire,” he said. “Cook us a pie or something. This demon-hunting is hungry work.”

Alec drove the stele into the sand of the pit and began drawing the rune for fire. He appeared to be muttering something about how Jace wouldn’t like it if he woke up in the morning with all of his hair shaved off.

Jace grinned at Clary. Under the ichor and blood, it was a ghost of his old, impish grin, but good enough. She took out Heosphoros. Simon and Isabelle had already disappeared down the east-facing tunnel; she and Jace turned the other way, which sloped slightly downward. As they fell into step, Clary heard Alec yell from behind them, “And your eyebrows, too!”

Dryly, Jace chuckled.

Maia wasn’t sure what she’d thought being pack leader would be like, but it hadn’t been this.

She was sitting on the big desk in the lobby of the Second Precinct building, Bat in the swivel chair behind her, patiently explaining various aspects of wolf pack administration: how they communicated with the remaining members of the Praetor Lupus in England, how messages were sent back and forth from Idris, even how they managed orders placed at the Jade Wolf restaurant. They both looked up when the doors burst open and a blue-skinned warlock woman in nurse’s scrubs stalked into the room, followed by a tall man in a sweeping black coat.

“Catarina Loss,” Bat said, by way of introduction. “Our new pack leader, Maia Roberts—”

Catarina waved him away. She was very blue, almost a sapphire color, and had glossy white hair piled into a bun. Her scrubs had trucks on them. “This is Malcolm Fade,” she said, gesturing to the tall man beside her. “High Warlock of Los Angeles.”

Malcolm Fade inclined his head. He had angular features, hair the color of paper, and his eyes were purple. Really purple, a color no human eyes ever were. He was attractive, Maia thought, if you liked that sort of thing. “Magnus Bane is missing!” he announced, as if it were the title of a picture book.

“And so is Luke,” said Catarina grimly.

“Missing?” Maia echoed. “What do you mean, missing?”

“Well, not missing exactly. Kidnapped,” said Malcolm, and Maia dropped the pen she was holding. “Who knows where they could be?” He sounded as if the whole thing was rather exciting and he was sad not to be a greater part of it.

“Is Sebastian Morgenstern responsible?” Maia asked Caterina.

“Sebastian captured all the Downworld representatives. Meliorn, Magnus, Raphael, and Luke. And Jocelyn, too. He’s holding them, he says, unless the Clave agrees to give him Clary and Jace.”

“And if they don’t?” asked Leila. Catarina’s dramatic entrance had brought the pack out, and they were filing into the room, draping themselves over the stairwell, and huddling up to the desk in the curious manner of lycanthropes.

“Then he’ll kill the representatives,” said Maia. “Right?”

“The Clave must know that if they let him do that, then Downworlders will rebel,” Bat said. “It would be tantamount to declaring that the lives of four Downworlders are worth less than the safety of two Shadowhunters.”

Not just two Shadowhunters, Maia thought. Jace was difficult and prickly, and Clary had been reserved at first, but they had fought for her and with her; they had saved her life and she had saved theirs. “Handing Jace and Clary over would be murdering them,” Maia said. “And with no real guarantee that we’d get Luke back. Sebastian lies.”

Catarina’s eyes flashed. “If the Clave doesn’t at least make a gesture toward getting Magnus and the others back, they won’t just lose the Downworlders on their Council. They’ll lose the Accords.”

Maia was quiet for a moment; she was conscious of all the eyes on her. The other wolves watching for her reaction. For their leader’s reaction.

She straightened. “What is the word from the warlocks? What are they doing? What about the Fair Folk and the Night’s Children?”

“Most of the Downworlders don’t know,” said Malcolm. “I happen to have an informant. I shared the news with Catarina because of Magnus. I thought she ought to know. I mean, this sort of thing doesn’t happen every day. Kidnapping! Ransoms! Love, sundered by tragedy!”

“Shut up, Malcolm,” said Catarina. “This is why no one ever takes you seriously.” She turned to Maia. “Look. Most of Downworld knows that the Shadowhunters packed up and went to Idris, of course; they don’t know why, though. They’re waiting for news from their representatives, which of course hasn’t come.”

“But that situation can’t hold,” said Maia. “Downworld will find out.”

“Oh, they’ll find out,” said Malcolm, looking as if he were trying hard to be serious. “But you know Shadowhunters; they keep themselves to themselves. Everyone knows about Sebastian Morgenstern, of course, and the Dark Nephilim, but the attacks on the Institutes have been kept fairly quiet.”

“They have the warlocks of the Spiral Labyrinth working on a cure for the effects of the Infernal Cup, but even they don’t know how urgent the situation is, or what’s been happening in Idris,” Catarina said. “I fear the Shadowhunters will wipe themselves out with their own secrecy.” She looked even bluer than before; her color seemed to change with her mood.

“So why come here to us, to me?” Maia asked.

“Because Sebastian already brought his message to you through his attack on the Praetor,” Catarina replied. “And we know you’re close with the Shadowhunters—the Inquisitor’s children and Sebastian’s own sister, for instance. You know as much as we do, maybe more, about what’s going on.”

“I don’t know that much,” Maia admitted. “The wards around Idris have been making it hard for messages to get through.”