His heart sped up at the thought, and the intense combination of fear and magic split Havoc’s chains — the wolf was free. Call darted across the room to Alastair’s desk and grabbed at the papers there. They were all covered in his dad’s fine spidery handwriting: pages of notes and drawings. There was a sketch of the gates of the Magisterium, and of a pillared building Call didn’t know, and of the airplane hangar where the Iron Trial had been held. But most of the drawings were of a weird mechanical thing that looked like an old-fashioned armored metal gauntlet, covered with strange symbols. It would have been cool if something about it hadn’t sent a chill of creepiness up Call’s spine.

The drawings sat beside a book explaining a weird, upsetting ritual. The tome was bound in cracked black leather, and the contents were horrifying. They explained how chaos magic could be harvested and used by someone other than a Makar — through the removal of a chaos creature’s still-beating heart. Once in possession of the gauntlet and the heart, chaos magic could be pushed out of a Makar, destroying the Makar completely.

But if they weren’t chaos mages, if they weren’t Makars, they’d survive.

Looking at the shackles on the cot, Call could guess who was going to be experimented on. Alastair was going to use chaos to perform a dark form of magical surgery on Call, one that would kill him if he really was the Enemy of Death and possessed the Enemy’s Makar ability.

Call had thought Alastair suspected the truth about him, but it looked like he’d moved beyond suspicion. Even if Call survived the magical surgery, he’d know this was a test he was supposed to fail. He possessed Constantine Madden’s soul and his own father wanted him dead because of it.

Beside the book was a note in Alastair’s spidery handwriting: This has to work on him. It must. “Must” was underlined several times, and next to it was written a date in September.

It was the date Call was supposed to return to the Magisterium. People in town knew he was home for the summer and probably figured he was returning to ballet school around the same time the local kids went back to public school. If Call had just disappeared in September, no one would have thought anything of it.

Call turned around to look at the shackles again. He felt sick to his stomach. September was only two weeks away.

“Call.”

Call whirled around. His father was standing in the doorway, dressed — as though he’d never planned on sleeping. His glasses were pushed up on his nose. He looked totally normal, and a little sad. Call stared in disbelief as his dad reached out a hand to him.

“Call, it’s not what you think —”

“Tell me you didn’t lock up Havoc here,” Call said in a low voice. “Tell me none of this stuff is yours.”

“I’m not the one who chained him up.” It was the first time Alastair had called Havoc a him and not an it. “But my plan is necessary, Call. It’s for you, for your own good. There are terrible people in the world and they’ll do things to you; they’ll use you. I can’t have that.”

“So you’re going to do something terrible to me first?”

“It’s for your own good!”

“That’s a lie!” Call shouted. He let go of Havoc, who growled. His ears were flat to his head and he was glaring at Alastair through swirling, multicolored eyes. “Everything you’ve ever said was a lie. You lied about the Magisterium —”

“I didn’t lie about the Magisterium!” Alastair snapped. “It was the worst place for you! It is the worst place for you!”

“Because you think I’m Constantine Madden!” Call shouted. “You think I’m the Enemy of Death!”

It was as if he’d stopped a tornado midspin: There was a sudden, charged, horrible silence. Even Havoc didn’t make a sound as Alastair’s expression crumbled and his body sagged against the doorway. When he replied, he spoke very softly. It was worse, in a way, than the anger. “You are Constantine Madden,” he said. “Aren’t you?”

“I don’t know!” Call felt adrift, bereft. “I don’t remember being anyone but me. But if I really am him, then you’re supposed to help me know what to do about it. Instead, you’re locking up my dog and …”

Call looked over at the boy-size shackles and swallowed the rest of his words.

“When I saw the wolf, that’s when I knew,” said Alastair, still in the same quiet voice. “I guessed before, but I could convince myself that you couldn’t possibly be like him. But Constantine had a wolf just like Havoc, back when we were your age. The wolf used to go everywhere with him. Just like Havoc does with you.”

Call felt a cold shiver pass across his skin. “You said you were Constantine’s friend.”

“We were in the same apprentice group. Under Master Rufus.” It was more than Alastair had ever said about his time at the Magisterium before. “Rufus chose five students at my Iron Trial. Your mother. Her brother, Declan. Constantine Madden. Constantine’s brother, Jericho. And me.” It hurt him to tell Call this — Call could see. “By the end of our Silver Year, only four of us were alive, and Constantine had started wearing the mask. Five years later, everyone was gone but him and myself. After the Cold Massacre, he was rarely seen.”

The Cold Massacre was where Call’s mother had died. Where his leg had been destroyed. It was where Constantine Madden had removed the soul of the child called Callum Hunt and put his own soul into the child’s body. But that wasn’t even the worst thing Call knew about it. The worst thing was what Master Joseph had told him about his mother.

“I know what she wrote in the snow,” Call said now. “She wrote ‘Kill the child.’ She meant me.”

His dad didn’t deny it.

“Why didn’t you kill me?”

“Call, I’d never hurt you —”

“Seriously?” Call grabbed for one of the drawings of the gauntlet. “What’s this? What were you going to use it for? Gardening?”

Alastair’s expression turned grim. “Call, give that here.”

“Were you going to chain me up so I wouldn’t struggle when you pulled out Havoc’s heart?” Call pointed at the shackles. “Or so I wouldn’t struggle when you used it on me?”

“Don’t be ridiculous!”

Alastair took a step forward, and that’s when Havoc leaped at him, snarling. Call shouted, and Havoc tried to arrest himself midjump, twisting his body desperately. He hit Alastair side-on, knocking him backward. Alastair crashed into a small table that broke under him. Wolf and man slammed against the floor.

“Havoc!” Call called. The wolf rolled off Alastair and resumed his place at Call’s side, still snarling. Alastair pushed himself up onto his knees and gradually stood, his balance unsteady.

Call lurched automatically toward his father. Alastair looked at him and there was something on his face that Call had never expected to see:

Fear.

It made Call furious.

“I’m leaving,” he spat. “Havoc and I are leaving and we’re never coming back. You missed your chance to kill us.”

“Call,” Alastair said, holding out a warning hand. “I can’t let you do that.”