The 6th Extinction (Sigma Force 10)

“XNA,” he said aloud, sitting straighter in his chair. “All life down there is based on a genetic helix that doesn’t use the sugar deoxyribose as its backbone. It’s unique, unlike any other life. That sugar backbone is replaced by a combination of arsenic and iron phosphate.” Kendall stared at Cutter. “It’s the iron, isn’t it? That’s what makes the XNA life so sensitive to magnetic fields.”

“I studied that iron structure using X-ray diffraction and photoelectron spectroscopy. It forms ferrous nanorings throughout the XNA helix, somewhat like vertebrae that make up a spine.”

“And with exposure to the right magnetic signature, it should be possible to shatter that spine.” He looked hopefully upon Cutter. “Have you calculated out what that signature is?”

“I did . . . and tested it. It’s not all that groundbreaking. Your own FDA has already been testing oscillating magnetic fields to kill bacteria, viruses, and fungi in water and food supplies. I simply modified that study’s finding and discovered the signature that works best in this case.”

Kendall pictured the organism he created in his lab, shriveling up inside his synthetically created capsids, leaving behind those shells like so many discarded snakeskins.

“Without this cure,” Cutter said, “I would never have unleashed your organism. Like you, I don’t want the world destroyed by what you created. In fact, if you had chosen to cure Ms. Beck instead of seeking this answer, I would’ve told you anyway. I can’t have the world dying before I can save it, now can I?”

Kendall glanced to the video feed. A flicker of dismay rattled through him, but he had to force it down. There was still too much at risk. “So you’ll allow me tell the authorities in California about the magnetic cure.”

“In time.”

“What do you mean, in time?”

“From what I hear, your illustrious colleagues are about to ignite a nuclear device in those mountains. Foolish as that may be. As we both know it will do little good, beyond casting your organism over an even wider field, while irradiating much of that area for decades to come. But that is humanity’s penchant: to destroy before thinking. It is why we are doomed as a species.”

“But you said you didn’t want my organism to destroy the world.”

“I don’t. Once you give them the solution, it’ll simply take longer to clean their mess up. It’ll keep them busy for a much longer time.”

“And the radiation? All that damage?”

“The earth has survived such flesh wounds from mankind before, and it will abide this one, too.” Cutter sighed. “Besides, this distraction will serve me well. To keep humanity looking one way while their doom comes from another direction entirely.”

From your work here.

“And if you’ll excuse me, I do have to make that call. See about getting a sample of blood from a Volitox before it’s too late.”

“Too late?”

Cutter paused. “You’ve been hiding that subterranean world for too long, Kendall, keeping it trapped, stunted from its full potential.”

He thought he could feel no deeper level of dismay and shock. “What . . . what are you planning?”

“I’m going to flush that darkly beautiful and wonderfully aggressive biosphere into our world. I believe it’s time they left their tiny island of isolation. Some will perish during this transition, of course, victims of the very magnetic flux we talked about, but as you know Nature is the greatest innovator. In such volumes and varieties, some species will survive by adapting, bringing forth to our world that XNA hardiness and mutability, perfect traits to survive the harsh times to come.”

Kendall pictured the environmental damage from the sudden onslaught of so many alien species. An entire aggressive biosphere set loose upon the world. The ecological repercussions would be devastating.

“I plan to pit your ancient world below against the modern above. During that war, I’ll unleash my species from here, casting them wide and far, bringing new and innovative genetic permutations, speeding up the evolutionary process by gifting these traits with the ability to jump between species. It will be the ultimate evolutionary crucible, where survival of the fittest will be the law of the land. To paraphrase the ancient Chinese strategist, Sun Tzu, within such chaos lies opportunity.”

Kendall must have looked aghast.

“You can be at my side, Kendall. To witness this transformation, the genesis of a new Eden, free from the degradations of man.”

Kendall pictured that prion-induced wildfire, knocking humankind back to a primitive state.

His eyes exultant, Cutter stepped back to the workstation. “Watch a small glimpse of that war to come, where the plague of man’s intelligence is stripped away, leaving humanity bound at last to natural law.”

Kendal knew which law Cutter adhered to with a religious conviction.

The Law of the Jungle.

Cutter tapped a key.

On the screen, the door to Jenna’s cage swung open.

1:29 P.M.

“How much longer?” Painter called up to Sergeant Suarez.

“Another thirty minutes, sir!”

Too long.

Painter shifted in his seat, impatient, his upper arm burning, the pain stoking his anxiety. He was all too conscious of the deadline. The nuclear device was set to detonate in California in another ninety minutes.

And here I am sitting on my ass.

After another minute, Suarez shouted. “Sir, you might want to come up front and see this.”

Glad for any distraction, any reason to move, Painter undid his seat harness and ducked forward. Drake snapped free and followed him up to the cockpit of the Valor.

“What is it?” Painter asked.

Suarez passed him a set of binoculars and pointed toward the distant tepui. It was still too far to make out any details, but Painter obeyed.

Suarez found a second pair of scopes and tossed them to Drake.

Painter took a moment to focus upon that distant mountain, its flanks shrouded in clouds.

“Look toward the south end,” the sergeant instructed. He also motioned to the pilot. “Give us a little waggle.”

Painter concentrated, leaning his bad shoulder against a bulkhead to keep his balance as the pilot shimmied the tiltrotor back and forth.

At first he didn’t see anything, just wind-sculpted rocks and a scraggly forest at the north end. Then as the plane shifted again, something flashed brightly, reflecting the sunlight, sparking out from the forest of stones along the southern rim.