“But you did say them to others,” Matthew said icily. “I have heard all about it in the years since.”

“Yes,” Alastair admitted flatly. “I did spread the story. I repeated—those words. I did do that.” He turned to Thomas. “I am—”

“Don’t say you are sorry.” Thomas’s lips were gray. “You think I have not heard that tale? Of course I have, though Matthew may have tried to protect me. I have heard my mother weep over it, my father incoherent with rage and sorrow, my sisters crushed with shame over lies—” He broke off, breathless. “You repeated those words without knowing or caring if they were true. How could you?”

“They were just words,” said Alastair. “I did not think—”

“You are not who I thought you were,” Thomas said, each word cold and sharp. “Matthew is right. This is your sister’s engagement party, and for Cordelia’s sake, we will mind our manners toward you, Carstairs. But if you come near me or speak to me at any point after this, I will knock you into the Thames.”

Lucie had never in her life heard Thomas speak so icily. Alastair backed away, his expression stunned. Then he turned on his heel and darted into the crowd.

Lucie heard Matthew murmur something to Thomas, but she did not stay to hear what: she was already racing after Alastair. He ran like there were wings on his feet, and she bolted after him: through the ballroom doors, down the stone steps, finally catching up to him in the entryway. “Alastair, wait!” she cried.

He spun around to look at her and she realized to her shock that he had been crying. In a strange way, she was reminded of the first time she had ever seen a man cry: the day her father had found out his parents were dead.

Alastair dashed the tears furiously from his eyes. “What do you want?”

Lucie was almost relieved to hear him sound so much himself. “You can’t leave.”

“What?” he sneered. “Don’t you hate me too?”

“It doesn’t matter what I think. This is Cordelia’s engagement party. You are her brother. It will break her heart if you vanish, and so I say you will not go.”

He swallowed hard. “Tell Layla—tell Cordelia that I have a bad headache and am resting in our carriage. There is no need for her to rush or spoil her evening.”

“Alastair—”

But he was gone, out into the night. Lucie turned back toward the stairs, dispirited. At least Alastair wasn’t leaving the Institute, but she would have preferred—

She jumped. Standing in a niche among the shadows was Grace, her pale green dress almost luminous in the dimness. She grimaced when she saw Lucie. “I suppose it looks as if I have been eavesdropping,” she said. “I assure you, however, I had no desire to overhear any of that.”

Lucie put her fists on her hips. “Then why were you here?”

“I was already on the steps,” said Grace. “I heard you galumphing down and decided it would be preferable to hide than to engage in conversation.”

“You were leaving,” said Lucie. “Weren’t you?”

Grace said nothing. She was standing very upright, not leaning against the wall. Lucie recalled something that James had said to her once, about Tatiana forcing Grace to walk back and forth in the parlor of Blackthorn Manor with a book balanced on her head to perfect her posture.

“You know,” Lucie said, feeling very weary, “you don’t have to marry Charles.”

Grace rolled her eyes. “Please don’t worry yourself. I am not impatient to be gone because of some excess of hurt feelings. And don’t bother telling me James doesn’t really want to marry Cordelia; I know that, too.”

Lucie froze. “I would never have said that.”

“No,” said Grace. “I suppose you wouldn’t.”

Lucie blew out an exasperated breath. “I know you think we have nothing in common,” she said. “But I am the only other person in the world who knows about your brother. Who knows the secret you’re protecting.”

Grace went still. “You saw Jesse in Idris,” she said. “I spoke with him. I know that he told you not to help him, and I know that you Herondales are honorable.” She practically spat the word. “If he asked you not to help him, you won’t. What use do you imagine I have for yet another person who won’t help my family?”

Lucie raised her chin. “That shows how well you know me, Miss Blackthorn. I have every intention of doing all I can to help Jesse—whether he wants me to or not.”

Grace stepped forward, out of the shadows. Her green earbobs danced in the light, like the jeweled eyes of cats. “In that case,” she said, “do tell me more.”

* * *

It did not take Magnus long to find Matthew Fairchild, leaning against the wall near the door to the withdrawing room, his necktie entirely undone.

Magnus stood a moment, looking at him: Matthew was exactly the sort of person Magnus always wanted to help, and later scolded himself roundly for having tried to help. In Magnus’s life there had been a hundred Matthew Fairchilds: young men and women as self-destructive as they were beautiful, who despite all the gifts that had been given to them, seemed to wish for no more than to burn down their own lives. He told himself over and over that the Matthew Fairchilds of this world could not be saved, and yet he could not stop himself from trying.

He leaned against the wall next to Matthew. He wondered why Matthew had chosen to stand here, half-hidden from the rest of the room by a pillar. He seemed to be staring rather blankly at the dance floor.

“I have always heard,” Magnus said, “that it was rude for a gentleman to be a wallflower.”

“Then you must also have heard that I am generally considered to be very rude,” said Matthew. There was a flask in his right hand, and a ring with the insignia of the Fairchilds sparkled on his finger.

Magnus had long observed to himself that a man who brought his own drink to a party where drinks were provided was indeed in a sorry state. But the real question was, he thought, why no one else seemed to notice that Matthew was only standing up because the wall was holding him.

Ordinarily, it would not have struck Magnus as particularly strange—getting tipsy at a party was nothing unusual for a boy of seventeen—but Matthew had been drunk when they were at Tower Bridge as well, though a less expert eye than Magnus’s might never have spotted it. A less expert eye might not spot it now. It wasn’t the drinking, Magnus thought, so much as the fact that Matthew was clearly practiced at pretending he had not been drinking.

Magnus said mildly, “I had thought that I might be an exception, since you said you admired my waistcoats.”

Matthew did not answer. He was still looking at the dance floor—though not just the crowd of dancers themselves, but rather a specific couple. Cordelia Carstairs and James Herondale.

Another Carstairs binding themselves to another Herondale. Magnus had been amused when he’d heard about the engagement. He thought he recalled James having muttered about some other girl to him the first time they’d met, but Romeo himself had once thought himself in love with a girl named Rosalind. It was clear from the way James and Cordelia looked at each other that this was a love match. It was also clear why Matthew was standing where he was—from this vantage point, there was a perfect view of James and Cordelia, his dark head bent over her fiery one, their faces close together.

Magnus cleared his throat. “I see why my waistcoats cannot hold your attention, Fairchild. I’ve been where you are. Wanting what you can’t have will only rip your heart apart.”

Matthew spoke in a low voice. “It would be one thing if James loved her. I would go into the quiet dark like Jem did and never speak of her again. But he doesn’t love her.”

“What?” Magnus was unpleasantly startled.

“This is a false marriage,” said Matthew. “It’s only for a year.”

Magnus tucked the information away as a mystery to be solved: it did not go along with what he knew of the Herondales, father or son. “And yet,” Magnus said, “during that year, they are man and wife.”

Matthew looked up, his green eyes flashing. “And during that year, I will do nothing. What kind of person do you think I am?”

“I think,” said Magnus, very slowly, “that you are a person who is incredibly sad, although I don’t know why. And I think that, as an immortal, I can tell you that a great deal can happen in a year.”

Matthew did not reply. He was watching Cordelia and James. Everyone in the room was. They were dancing close together, and Magnus would have cheerfully bet a thousand pounds that they were in love.

A bet, it seemed, he would have lost. And yet.

Oh, dear, Magnus thought. I may need to linger in London a bit longer.

Perhaps I should send for my cat.

* * *

It was as if no time had passed since Cordelia’s first ball in London, and yet everything had changed.

She felt a million miles from the anxious girl who had come to London desperate to make friends and allies, who had seen in every face a stranger. Now she had friends—a richness of friends: she could see Anna, at the entrance to the ballroom, speaking cheerfully to Christopher. There was Thomas, seated with his sister, and Matthew, beside Magnus Bane. And Lucie, her Lucie, who would one day stand with her in the blazing circles of the parabatai ceremony.

“Daisy,” said James, with a smile. It was a real smile, though she could not quite tell if he was happy or sad or something in between. “What are you thinking?”

One thing had not changed: her heart still beat too fast when she danced with James.

“I was thinking,” she said, “it must be strange to you, that Belial’s realm was destroyed.”

One dark eyebrow flicked upward, a flourish of ink across a page. “What do you mean?”

“It was a place only you could see,” she said. “That only you could go. Now it is gone. It is like an enemy that you have known a long time. Even if you hated it, it must be strange to think of never seeing it again.”