“Aye, aye,” Amos said.

“Alex, keep an eye on Amos’ biomed feed from over there. Give us a heads-up if you see a problem,” Holden said on the general channel.

“Roger,” came Alex’s lazy drawl.

“You finding anything?” Holden asked Miller on their private channel.

“Nothing unexpected,” Miller said. “You?”

“Yeah, actually. Take a look.”

Miller pushed himself to the screen Holden had been working. Holden pulled himself back into the station and started pulling up feeds.

“I was thinking that someone had to go last,” Holden said. “I mean, there had to be someone who was the least sick when whatever it was got loose. So I went through the directory to see what activity was going on before the system went dead.”

“And?”

“There’s a whole bunch of activity that looks like it happened a couple days before the system shutdown, and then nothing for two solid days. And then a little spike. A lot of accessed files and system diagnostics. Then someone hacked the override codes to blow atmosphere.”

“It was Julie, then.”

“That’s what I was thinking,” Holden said. “But one of the feeds she accessed wasc Shit, where is it? It was rightc Oh. Here. Watch this.”

The screen blinked, controls dropping to standby, and a high-res emblem, green and gold, came up. The corporate logo of Protogen, with a slogan Miller hadn’t seen before. First. Fastest. Furthest.

“What’s the time stamp on the file?” Miller asked.

“The original was created about two years ago,” Holden said. “This copy was burned eight months ago.”

The emblem faded, and a pleasant-faced man sitting at a desk took its place. He had dark hair, with just a scattering of gray at the temples, and lips that seemed used to smiling. He nodded at the camera. The smile didn’t reach his eyes, which were as empty as a shark’s.

Sociopath,Miller thought.

The man’s lips began moving soundlessly. Holden said, “Shit,” and hit a switch to have the audio transmitted to their suits. He rewound the video feed and started it over.

“Mr. Dresden,” the man said. “I would like to thank you and the members of the board for taking the time to review this information. Your support, both financial and otherwise, has been absolutely essential to the incredible discoveries we’ve seen on this project. While my team has been point man, as it were, Protogen’s tireless commitment to the advancement of science has made our work possible.

“Gentlemen, I will be frank. The Phoebe protomolecule has exceeded all our expectations. I believe it represents a genuinely game-changing technological breakthrough. I know that these kinds of corporate presentations are prone to hyperbole. Please understand that I have thought about this carefully and chosen my words: Protogen can become the most important and powerful entity in the history of the human race. But it will require initiative, ambition, and bold action.”

“He’s talking about killing people,” Miller said.

“You’ve seen this already?” Holden said.

Miller shook his head. The feed changed. The man faded out, and an animation took his place. A graphic representation of the solar system. Orbits marked in wide swaths of color showed the plane of the ecliptic. The virtual camera swirled out from the inner planets, where Mr. Dresden and board members presumably were, and out toward the gas giants.

“For those of you on the board unfamiliar with the project, eight years ago, the first manned landing was made on Phoebe,” the sociopath said.

The animation zoomed in toward Saturn, rings and planet flying past in a triumph of graphic design over accuracy.

“A small ice moon, the assumption was that Phoebe would eventually be mined for water, much like the rings themselves. The Martian government commissioned a scientific survey more out of a sense of bureaucratic completeness than from expectation of economic gain. Core samples were taken, and when silicate anomalies raised flags, Protogen was approached as cosponsor of a long-term research facility.”

The moon itself—Phoebe—filled the frame, turning slowly to show all sides like a prostitute at a cheap brothel. It was a crater-marked lump, indistinguishable from a thousand other asteroids and planetesimals Miller had seen.

“Given Phoebe’s extra-ecliptical orbit,” the sociopath went on, “one theory has been that it was a body that originated in the Kuiper belt and had been captured by Saturn when it happened to pass through the solar system. The existence of complex silicon structures within the interior ice, along with suggestions of impact-resistant structures within the architecture of the body itself, have forced us to reevaluate this.

“Using analyses proprietary to Protogen and not yet shared with the Martian team, we have determined beyond any credible doubt that what you are seeing now is not a naturally formed planetesimal, but a weapon. Specifically, a weapon designed to carry its payload through the depths of interplanetary space and deliver it safely onto Earth two and one third billion years ago, when life itself was in its earliest stages. And the payload, gentlemen, is this.”

The display clicked to a graphic that Miller couldn’t quite parse. It looked like the medical text of a virus, but with wide, looping structures that were at once beautiful and improbable.

“The protomolecule first caught our interest for its ability to maintain its primary structure in a wide variety of conditions through secondary and tertiary changes. It also showed an affinity for carbon and silicon structures. Its activity suggested it was not in itself a living thing, but a set of free-floating instructions designed to adapt to and guide other replicating systems. Animal experiments suggest that its effects are not exclusive to simple replicators, but are, in fact, scalable.”

“Animal tests,” Miller said. “What, they dumped it on a cat?”

“The initial implication of this,” the sociopath went on, “is that a larger biosphere exists, of which our solar system is only a part, and that the protomolecule is an artifact of that environment. That alone, I think you must agree, would revolutionize human understanding of the universe. Let me assure you, it’s small beer. If accidents of orbital mechanics had not captured Phoebe, life as we know it would not presently exist. But something else would. The earliest cellular life on Earth would have been hijacked. Reprogrammed along lines contained within the structure of the protomolecule.”

The sociopath reappeared. For the first time, smile lines appeared around his eyes, like a parody of themselves. Miller felt a visceral hatred growing in his gut and knew himself well enough to recognize it for what it was. Fear.

“Protogen is in a position to take sole possession of not only the first technology of genuinely extraterrestrial origin, but also a prefabricated mechanism for the manipulation of living systems and the first clues as to the nature of the larger—I will call it galactic—biosphere. Directed by human hands, the applications of this are limitless. I believe that the opportunity now facing not only us but life itself is as profound and transformative as anything that has ever happened. And, further, the control of this technology will represent the base of all political and economic power from now on.

“I urge you to consider the technical details I have outlined in the attached. Moving quickly to understand the programming, mechanism, and intent of the protomolecule, as well as its direct application to human beings, will mark the difference between a Protogen-led future and being left behind. I urge immediate and decisive action to take exclusive control of the protomolecule and move forward with large-scale testing.

“Thank you for your time and attention.”

The sociopath smiled again, and the corporate logo reappeared. First. Fastest. Furthest.Miller’s heart was racing.