“It is not my secret to tell,” said Magnus.

He might not enjoy sneaking around, but he would not tell anybody’s secret. Least of all would he risk causing Alec pain or fear.

“You really like him, right?” Isabelle asked. “My brother?”

“Oh, did you mean Alec?” Magnus retorted. “I thought you meant my cat.”

Isabelle laughed and kicked at one of Magnus’s cabinet doors with one spike heel, careless and radiant. “Come on, though,” she said. “You do.”

“Are we going to talk about boys?” Magnus inquired. “I didn’t realize, and I am honestly not prepared. Can’t you come over another time, when I’m in my jammies? We could do homemade facials and braid each other’s hair, and then and only then will I tell you that I think your brother is totally dreamy.”

Isabelle looked pleased, if a little mystified. “Most people go for Jace. Or me,” she added blithely.

Alec had said as much to Magnus once, seeming stunned that Magnus might hope to see him instead of Jace.

Magnus was not planning on talking about why he preferred Alec. The heart had its reasons, and they were seldom all that reasonable. You might as well have asked why Clary hadn’t created a hilarious love triangle by getting a crush on Alec, since he was—in Magnus’s admittedly biased opinion—extremely handsome, and had been consistently sullen in her direction, which some girls liked. You liked the people you liked.

For all that, Magnus had many reasons. Nephilim were guarded, Nephilim were arrogant, Nephilim were to be avoided. Even the Shadowhunters Magnus had met and liked had been, every one, a trouble sundae with dark secret cherries on top.

Alec was not like any Shadowhunter Magnus had met before.

“May I see your whip?” asked Magnus.

Isabelle blinked, but to do her justice, she did not demur. She un-looped the electrum whip and tangled its silvery-gold length around her hands for a moment, like a child playing cat’s cradle.

Magnus took the whip carefully, laid across his palms like a snake, and he carried it to his closet door, which he opened. He drew out a special potion, one that he had paid an exorbitant price for and that he had been saving for something special. Shadowhunters had their runes to protect them. Warlocks had magic. Magnus had always liked his magic better than theirs. Only a Shadowhunter could bear runes, but he could give magic to anyone. He tipped the potion—faerie dust and blood taken in one of the old rituals, hematite and hellebore and more besides—onto the whip.

In the last extremity this weapon will not fail you; in the darkest hour this weapon will bring your enemy low.

Magnus carried the whip back to Isabelle when he was done.

“What did you do to it?” Isabelle asked.

“I gave it a little extra kick,” said Magnus.

Isabelle regarded him with narrowed eyes. “And why would you do that?”

“Why did you come to tell me that you knew about me and Alec?” asked Magnus. “It’s his birthday. That means the people who care about him want to give him what he wishes for most. In your case, acceptance. In mine, I know that the most important thing to him in the world is that you be safe.”

Isabelle nodded, and their eyes met. Magnus had said far too much, and he worried that Isabelle could see more.

She launched herself off the counter, toward Magnus’s small alabaster-topped coffee table, and scrawled on his notepad. “Here’s my number.”

“May I ask why you’re giving it to me?”

“Well, wow, Magnus. I knew you were hundreds of years old and all, but I hoped you were keeping up with modern technology.” Isabelle held out her phone to illustrate her point, and waggled it about. “So that you can call me, or text me. If you ever need Shadowhunter help.”

“Me need Shadowhunter help?” Magnus inquired, incredulous. “Over the—you’re right, hundreds of years—let me tell you that I’ve found it is almost invariably the other way around. I presume you’ll be wanting my number in return, and I’m also prepared to bet, based on nothing more than a passing acquaintance with your circle of friends, that you are going to get into trouble and need my expert magical assistance rather a lot.”

“Yeah, maybe,” said Isabelle with a rakish grin. “I’ve been known to be a troublemaker. But I didn’t give you my number because I want magical help, and okay, I understand that the High Warlock of Brooklyn probably doesn’t need an assist from a bunch of underage Nephilim. I was thinking that, if you’re going to be important to my brother, we should be able to get in touch. And I was thinking that you might want to have it if—if you need to contact me about Alec. Or if I need to contact you.”

Magnus understood what the girl meant. His number was easy enough to get—the Institute had it—but in giving him her own, Isabelle was offering the free exchange of information about Alec’s safety. The Nephilim led dangerous lives, chasing after demons, stalking the Downworld for lawbreakers, their rune-Marked, angel-swift bodies the last line of defense for the mundane world. The second time Magnus had ever seen Alec, he had been dying of demon poison.

Alec could die at any time, in any of the battles to come. Isabelle would be the only one of the Shadowhunters who knew for sure that there was anything between Magnus and Alec. She would be the only one who knew that if Alec died, Magnus would be someone who needed to be told.

“All right,” he said slowly. “Thank you, Isabelle.”

Isabelle winked. “No need to thank me. I’ll be driving you mad before long.”

“I’ll be expecting it,” said Magnus as she clattered out on her high, weaponized heels. He admired anyone who made beauty and utility work together.

“By the way, that demon is dripping slime all over your floor,” said Isabelle, poking her head back around the door.

“Hi,” said Elyaas, and he waved a tentacle at her.

Isabelle regarded him with disdain, then raised an eyebrow in Magnus’s direction. “Just thought I’d point it out,” she said, and closed the door.

“I don’t undersssstand the point of your present,” said Elyaas. “He isn’t even going to know about it? You should have just gone with flowers. Red rosssses are very romantic. Or perhaps tulips if you think that roses say you just want him for sssssex.”

Magnus lay upon his golden sofa and contemplated the ceiling. The sun was low in the sky, a flash of golden paint inscribed with a careless hand over the New York skyline. The demon’s shape had become more and more gelatinous as the day had progressed, until he seemed like nothing more than a lurking pile of slime. Possibly Caroline Connor would never come back. Possibly Elyaas was going to live with Magnus now. Magnus had always thought Raphael Santiago was the worst possible roommate he could ever have. Possibly he was about to be proven wrong.

He wished, with a profundity of longing that surprised him, that Alec were here.

Magnus remembered a town in Peru whose Quechua name meant “quiet place.” He recalled even more vividly being obscenely drunk and unhappy over his heartbreak of that time, and the maudlin thoughts that had recurred to him over the years, like an unwanted guest slipping in through his doors: that there was no peace for such as he, no quiet place, and there never would be.