Claire almost dropped the bone as she turned it in her hand so the sharp end was ready to use, then got on one knee next to Myrnin’s motionless body. She carefully brushed hair away from his marble-pale face. His eyes were open, and fixed. They looked dry, but as she watched, moisture flooded over them, and he blinked, blinked again, gasped, and came bolt upright. His gaze fixed on Claire’s face, and he grabbed her arm in a tight, grinding grip.

“Let go,” she said. He didn’t. “Myrnin!”

“Hush,” he whispered. “I’m thinking.”

“Yeah, great—can you do it without breaking my arm?”

“No.” He didn’t even try to explain that, but just got to his feet while still clamped on to her wrist like a person-sized handcuff. “That hurt.”

“You need to shut her down; she just tried to kill you!”

Myrnin’s eyes flashed a bloody red. “You will not tell me what to do!” He shoved her abruptly at Michael, and the glare was even angrier for him. “What are you doing here?”

“Talk later. Go now,” Michael said, and grabbed Claire up in his arms before she could protest. “Those things are coming for us.”

Myrnin looked around into darkness that hid whatever it was that scared Michael so much. Claire didn’t think she wanted to know; she put her arms around his neck and hung on for dear life as she felt his muscles tense. Things moved past, and she noticed a sense of air pressing against her. The tunnel, she thought, because things felt closed in, sounds seemed muffled and strange. “Myrnin?” she called behind them, but got no reply. Then she felt Michael jump, and for a breathless second she was weightless, suspended in midair as the light seemed to rush over her.

Michael landed perfectly just beyond the trapdoor set into the lab’s concrete and stone, and quickly spun around, backing away at the same time.

Myrnin seemed to almost levitate up out of the hole in the floor, graceful as a cat. As his coat swirled like black fog, he turned in midair, reached out, and slammed the trapdoor shut.

Then he landed on it, light and perfectly balanced, and leaned over to slam his palm down on a red panel on top. It lit up, and a metallic clunk echoed through the lab. Myrnin stepped off the door, stared at it for a second, and then carefully unrolled the carpet and smoothed it back over the entrance to Ada’s cave.

Claire let go of Michael and slid to her feet. She was still gripping her sharp-pointed bone weapon, and she didn’t really feel inclined to put it down. Not yet. “What just happened?”

“I set the lock,” Myrnin said, and tapped a toe on the carpet, in case she’d missed the point. “It’s quite clever, you know. Electromagnetic. Keyed to my own handprint.”