Heron turned away and started fiddling with one of the other Partials, the one next to Williams, checking his vital signs before carefully disconnecting him, tube by tube, from the life support system. She wasn’t killing him, Samm knew, she was freeing him; this was the next step in their plan. He checked his own oxygen level in the diving helmet—a needless precaution, since there were several hours left—and read Williams’s sensor readout one last time. He was alive, technically, and his body was as healthy as any long-term coma patient’s would be. He turned to the other nine Partials and helped Heron unplug them from the machines.

They wheeled the first two gurneys to the elevator and took them upstairs. The humans who lived in the Preserve were waiting outside, led by the only two humans Samm was certain he could trust: Phan, the short, perpetually cheerful hunter, and Calix, the most skilled scout in the Preserve, now confined to a wheelchair from the gunshot in her leg. She watched Heron coldly as they brought the first two Partials out of the building, but when they actually reached her the coldness was gone, and she was all business.

“I didn’t want to believe you,” she said, staring at the comatose Partials.

“There are eight more down there,” said Samm, taking off his diving helmet. The air was fresh, with no lingering trace of the sedative. “All as emaciated as these two.”

“And this is where Dr. Vale got the cure,” said Phan. He touched one of the unconscious Partials lightly on the arm. “We didn’t know. We never would have . . .” He looked up at Samm. “I’m sorry. If we’d known he was enslaving Partials, we would have . . . I don’t know. But we would have done something.”

“We’ve had more than one thousand children born since the Break,” said Laura, an older woman, and the acting leader of the Preserve now that Vale was gone. “Are you really saying you would have let them all die?”

Phan went pale, an impressive feat on his dark features. “I didn’t mean that, I just mean—”

“Are you saying you want them back down there?” asked Heron, watching Laura like a snake about to strike. She still wore her helmet, and the radio gave her voice a menacing, mechanical sound. Samm interjected before the situation could get out of hand.

“I’ve already told you I’ll fill in for them myself,” said Samm. “You need the cure, and I understand that, so you can get it from me—willingly. The slaves go free, and everybody’s happy.”