Beside the banquet stood a line of topiaries trimmed into tidy shapes — flowers, symbols, patterns, and letters. Bright flowers ringed each trunk, but the brightest sight of all was an arched folly with a waterfall of liquid fire. It flamed and sparked onto the grass where barefoot girls in party frocks ran back and forth putting their hands into the sparks, which ran up and down their skin without seeming to burn them. As if to drive home the point, a painted sign hung in the air above the waterfall. It read CHILDREN, PLEASE PLAY WITH THE FIRE.

Call kind of wanted to run back and forth in it, too, but he wasn’t sure if he was allowed or if it was just for little kids. Havoc nosed in the grass for dropped bits of food. Tamara had tied a pink bow around his neck. Call wondered if Havoc felt humiliated. He didn’t seem to be.

“You’ve been going to parties like this all summer?” Call asked Aaron.

Aaron looked a little uncomfortable. “Pretty much.”

“I’ve been going to parties like this all my life,” Tamara said, dragging them along. “They’re just parties. They get boring fast. Now come on, the glamours are actually cool. You don’t want to miss them.”

They went past the topiaries and the fire waterfall, past the tables and the clumps of partygoers to a wide stretch of lawn, where a small group had gathered. Call could tell they were mages not just by the subtle bands that glittered on their wrists but also from their air of confidence and power.

“What’s going to happen?” Call asked.

Tamara grinned. “The mages are going to show off.”

As if he’d heard her, one of the mages, a compactly built man with light brown skin, raised his hand. The area around the mages started to crowd as Mr. and Mrs. Rajavi called over the rest of the partygoers.

“That’s Master Cameron,” Tamara whispered, looking at the mage, whose hand had begun to glow. “He teaches at the Collegium. He does the best tricks with —”

Suddenly, a wave rose from the mage’s hand. It was as if the grass were the sea instead, goaded into producing a tidal wave. It grew and grew and grew until it towered above them, shadowing the party, large enough to crush the house and flood the grounds. Call sucked in a breath.

The air smelled of brine. Inside the wave, he could see things moving. Eels and sharks snapping their jaws. Salt spray splashed Call’s face as the whole thing crashed down … and disappeared.

Everyone burst into applause. Call would have clapped, too, if he hadn’t been holding Havoc’s leash in one hand. Havoc was whining and nosing his fur. He hated being wet.

“Water,” Tamara finished with a laugh. “Once, when it was really hot, he came over and made a massive sprinkler right next to the pool. We all ran through it, even Kimiya.”

“What do you mean, even Kimiya?” came a teasing voice. “I like water as much as anyone else!” Tamara’s older sister, wearing a silver dress and sandals, had come up behind them. Holding her hand was Alex Strike, who was heading into his fourth year at the Magisterium and was Master Rufus’s frequent assistant. He was dressed down in jeans and a T-shirt, with a bronze band at his wrist, since he hadn’t gotten his silver one yet. He grinned at Call.

“Hey, squirt,” he said.

Call smiled a little awkwardly. Alex had always been nice to him, but he hadn’t known Alex was dating Tamara’s older sister. Kimiya was really pretty and popular, and Call always felt as if he were about to fall over or set himself on fire when he was around her. It made sense that two popular people were together, but it also made him more conscious of a lot of other things — his limp, his messy hair, the fact he was standing there in Aaron’s borrowed clothes.

Master Cameron finished his display with a flourish — sparkling droplets that shot out toward the guests. Everyone squealed, anticipating getting wet, but the water evaporated a few feet above the heads of the crowd, turning into wisps of colored vapor. Mr. and Mrs. Rajavi led the applause as another mage stepped forward, this one a tall woman with a magnificent crown of silver hair. Call recognized her as the woman who had brushed past him imperiously on the front steps.

“Anastasia Tarquin,” said Tamara in a whisper. “She’s Alex’s stepmother.”

“That she is,” Alex confirmed. His expression as he watched her was neutral. Call wondered if he liked her. When Call had been younger, he’d wished his dad would get married again so he could have a stepmother; it seemed better than no mother at all. Only when he was older had he stopped to wonder what would have happened if his dad had married someone he didn’t like.

Anastasia Tarquin raised both hands imperiously, holding thin metal rods in each. When she let them go, they lined themselves up in the air in front of her. She twitched her fingers, and one of them vibrated, sending out a single perfect note of music. Call jumped in surprise.

Alex looked over at him. “Cool, huh? When you master metal, you’ll be able to get it to vibrate to whatever frequency you want.”

The other metal rods were trembling now, each one of them like a different guitar string being plucked, sending out a torrent of music. Call liked music as much as the next person, but he’d never really thought about it before, about how alchemical magic could be used not just to build up and defend, or to attack and battle, but to make art. The music was like rain breaking through the humid air; it made him think of waterfalls and snow and ice floes far out in the ocean.

When the last note of the music died away, the metal rods dropped, falling to the earth and melting into it like rainwater sinking into mud. Mrs. Tarquin bowed and stepped back amid a shower of applause. As she moved away, she winked in Alex’s direction. Maybe they got along after all.

“And now,” said Mr. Rajavi, “perhaps our very own Makar, Aaron Stewart, would favor us with a demonstration of chaos magic?”

Call felt Aaron stiffen beside him as everyone clapped enthusiastically. Tamara turned and patted Aaron on the shoulder. He looked at her for a second, biting his lip, before he straightened up and made his way to the center of the mages’ circle.

He looked very small there.

Doing tricks and going to parties. That’s what Aaron had told Call, but Call hadn’t thought he’d meant actual tricks. Call had no idea what a chaos mage could do that was pretty or artistic. He remembered the rolling, devouring darkness the other Chaos-ridden wolves had disappeared into; remembered the chaos elemental pocked with wide, wet mouths; and shuddered with a feeling that was part dread and part anticipation.

Aaron lifted his hands, fingers spread wide. Darkness rolled in.

A hush spread over the party as more people joined the crowd, staring at their Makar and the growing shadows around him. Chaos magic came from the void, came from nothing. It was creation and destruction all rolled into one, and Aaron commanded it.

For a moment, even Call was a little afraid of him.

The shadows congealed into the twin shapes of two chaos elementals. They were thin, sleek creatures that resembled whippets made entirely of darkness, smaller than the one in Master Joseph’s lair had been. Still, their eyes glittered with the madness of the void.

Gasps went up all around the party. Tamara clutched Call’s arm.

For his part, Call gaped. This didn’t seem like a trick. Those things seemed dangerous. They were regarding the crowd as though they’d like nothing better than to devour everyone watching and pick their teeth with the bones of the people over by the food.