Surprisingly well, had been the answer. They hadn't needed him after all. They'd had Jules.
Jace seated himself on a windowsill. He was bigger than he had been the first time Mark had met him, of course. Taller, broader shouldered, though still graceful. Rumor had it that even the Seelie Queen had been impressed by his looks and manner, and faerie gentry were rarely impressed by humans. Even Shadowhunters.
Though sometimes they were. Mark supposed his own existence was proof of that. His mother, the Lady Nerissa of the Seelie Court, had loved his Shadowhunter father.
"Julian doesn't want the Centurions here," said Jace. "Does he?"
Mark looked at them both with suspicion. "I wouldn't know."
"Mark won't tell us his brother's secrets, Jace," said Clary. "Would you tell Alec's?"
The window behind Jace rose high and clear, so clear Mark sometimes imagined he could fly out of it. "Maybe if it was for his own good," Jace said.
Clary made an inelegant doubtful noise. "Mark," she said. "We need your help. We have some questions about Faerie and the Courts-their actual physical layout-and there don't seem to be any answers-not from the Spiral Labyrinth, not from the Scholomance."
"And honestly," Jace said, "we don't want to look too much like we're investigating, because this mission is secret."
"Your mission is to Faerie?" Mark guessed.
They both nodded.
Mark was astonished. Shadowhunters had never been comfortable in the actual Lands of Faerie, and since the Cold Peace they'd avoided them like poison. "Why?" He turned quickly from the claymore. "Is this some kind of revenge mission? Because Iarlath and some of the others cooperated with Malcolm? Or-because of what happened to Emma?"
Emma still sometimes needed help with the last of her bandages. Every time Mark looked at the red lines crossing her skin, he felt guilt and sickness. They were like a web of bloody threads that kept him bound to the deception they were both perpetrating.
Clary's eyes were kind. "We're not planning to hurt anyone," she said. "There's no revenge going on here. This is strictly about information."
"You think I'm worried about Kieran," realized Mark. The name lodged in his throat like a piece of snapped-off bone. He had loved Kieran, and Kieran had betrayed him and gone back to the Hunt, and whenever Mark thought about him, it felt as if he were bleeding from someplace inside. "I am not," he said, "worried about Kieran."
"Then you wouldn't mind if we talked to him," said Jace.
"I wouldn't be worried about him," said Mark. "I might be worried about you."
Clary laughed softly. "Thank you, Mark."
"He's the son of the Unseelie Court's King," said Mark. "The King has fifty sons. All of them vie for the throne. The King is tired of them. He owed Gwyn a favor, so he gave him Kieran in repayment. Like the gift of a sword or a dog."
"As I understand it," said Jace, "Kieran came to you, and offered to help you, against the wishes of the fey. He put himself in grave danger to assist you."
Mark supposed he shouldn't be surprised that Jace knew that. Emma often confided in Clary. "He owed me. It was thanks to him that those I love were badly hurt."
"Still," said Jace, "there is some chance he might prove amenable to our questions. Especially if we could tell him they were endorsed by you."
Mark said nothing. Clary kissed Jace on the cheek and murmured something in his ear before she headed out of the room. Jace watched her go, his expression momentarily soft. Mark felt a sharp stab of envy. He wondered if he would ever be like that with someone: the way they seemed to match, Clary's kind playfulness and Jace's sarcasm and strength. He wondered if he had ever matched with Kieran. If he would have matched with Cristina, had things been different.
"What is it you mean to ask Kieran?" he said.
"Some questions about the Queen, and about the King," said Jace. Noting Mark's impatient movement, he said, "I'll tell you a little, and remember I should be telling you nothing. The Clave would have my head for this." He sighed. "Sebastian Morgenstern left a weapon with one of the Courts of Faerie," he said. "A weapon that could destroy us all, destroy all Nephilim."
"What does the weapon do?" Mark asked.
"I don't know. That's part of what we need to find out. But we know it's deadly."
Mark nodded. "I think Kieran will help you," he said. "And I can give you a list of names of those in Faerie to look for who might be friendly to your cause, because it will not be a popular one. I do not think you know how much they hate you. If they have a weapon, I hope you find it, because they will not hesitate to use it, and they will have no mercy on you."